Daily Disposable Contact Lenses with UV Blocker

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Product Information

Specifications:

• Material: somofilcon A
• Water Content: 56%
• Usage: Daily Disposable
• UV Blocker: Yes

Description:

The Silicone Hydrogel 1 day (somofilcon A) Soft (Hydrophilic)
Daily Disposable Contact Lenses with UV Blocker are made from
somofilcon A with a water content of 56% and are for daily
disposable use. These lenses contain a UV Blocker to protect your
eyes from harmful UV radiation.

Features:

• Hydrophilic co-polymer of silicone
• Contains monomers and hydrophilic monomers
• Cross-linked with tetraethyleneglycol dimethacrylate and
  di-functional methacryloxypropyl-terminated
  poly(dimethylsiloxane)

Product Usage Instructions

Insertion and Removal:

1. Wash your hands thoroughly before handling the lenses.

2. Ensure the lens is clean and free of any debris.

3. To insert, place the lens on the tip of your index finger and
   use your other hand to hold your eyelids open. Gently place the
   lens on your eye.

4. To remove, look up and carefully slide the lens down to the
   white part of your eye. Pinch the lens gently between your thumb
   and index finger and remove it.

Care and Maintenance:

Store the lenses in a clean case with fresh solution. Replace
the solution daily and never reuse old solution. Clean the lenses
with the recommended cleaning solution before and after each
use.

Duration of Wear:

These lenses are designed for daily disposable use. Do not wear
them for longer than recommended by your eye care practitioner.

FAQ

Q: Can I wear these lenses while sleeping?

A: No, these lenses are designed for daily wear and should not
be worn while sleeping.

Q: How do I know if the lens is inside out?

A: To check if the lens is inside out, place it on your
fingertip. If the edges flare out slightly, it is inside out. The
correct lens should have straight edges.

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Silicone Hydrogel 1 day (somofilcon A) Soft (Hydrophilic) Daily Disposable Contact Lenses with UV Blocker
PROFESSIONAL FITTING AND INFORMATION GUIDE
Silicone Hydrogel 1 day (somofilcon A) Silicone Hydrogel 1 day toric (somofilcon A) Silicone Hydrogel 1 day multifocal (somofilcon A)
Soft (Hydrophilic) Daily Disposable Contact Lenses with UV Blocker
IMPORTANT: This Professional Fitting and Information Guide contain important information and instructions. Please read carefully and keep this information for future use.
CAUTION: Federal law (USA) restricts this device to sale by or on the order of a licensed Eye Care Practitioner.

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Silicone Hydrogel 1 day (somofilcon A) Soft (Hydrophilic) Daily Disposable Contact Lenses with UV Blocker
Table of Contents
INTRODUCTION…………………………………………………………………………………………………………………………. 3 PRODUCT DESCRIPTION …………………………………………………………………………………………………………… 3 LENS PARAMETERS AVAILABLE ……………………………………………………………………………………………… 4 ACTIONS ……………………………………………………………………………………………………………………………………. 5 TRANSMITTANCE CURVES……………………………………………………………………………………………………….. 6 INDICATIONS (USES) …………………………………………………………………………………………………………………. 7 CONTRAINDICATIONS, WARNINGS, PRECAUTIONS AND ADVERSE REACTIONS …………………. 7 FITTING GUIDELINES………………………………………………………………………………………………………………… 8 WEARING AND APPOINTMENT SCHEDULE……………………………………………………………………………. 21 LENS APPLICATION AND REMOVAL………………………………………………………………………………………. 21 LENS CARE DIRECTIONS…………………………………………………………………………………………………………. 23 HOW SUPPLIED………………………………………………………………………………………………………………………… 24 REPORTING OF ADVERSE REACTIONS…………………………………………………………………………………… 24

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Silicone Hydrogel 1 day (somofilcon A) Soft (Hydrophilic) Daily Disposable Contact Lenses with UV Blocker

INTRODUCTION
The Silicone Hydrogel 1 day (somofilcon A) Soft (Hydrophilic) Daily Disposable Contact Lenses with UV Blocker are made from somofilcon A with a water content of 56% and are for daily disposable use.
This Fitting Guide has been developed to provide practitioners with information covering characteristics of the Silicone Hydrogel 1 day (somofilcon A) Soft (Hydrophilic) Daily Disposable Contact Lenses with UV Blocker and to illustrate fitting procedures. Please read carefully and keep this information for future use.

PRODUCT DESCRIPTION

The Silicone Hydrogel 1 day (somofilcon A) Soft (Hydrophilic) Contact Lenses for Daily Disposable Contact Lenses with UV Blocker are a hydrophilic co- polymer of silicone containing monomers and hydrophilic monomers which is cross-linked with tetraethyleneglycol dimethacrylate and di-functional methacryloxypropyl-terminated poly(dimethylsiloxane).

When hydrated, the lens consists of 44.0% somofilcon A and 56.0% water by weight. A benzophenone UV absorbing monomer is used to block UV radiation.

The average transmittance characteristics are less than 5% in the UVB range of 280-315nm and less than 50% in the UVA range of 315-380nm.

The lens contains a UV Blocker and has a hemispherical flexible shell, which covers the cornea and a portion of the adjacent sclera, with the following dimensions:

· Chord Diameter: · Centre Thickness: · Base Curve: · Powers: · Toric Cylinder options: · Toric Axis options: · Multifocal ADD**:

13.0 mm to 15.5 mm 0.03 mm to 0.50 mm 7.50 mm to 9.30 mm -20.00D to +20.00D -0.75D, -1.25D, -1.75D and -2.25D 10o to 180o (10o steps)

(**The Silicone Hydrogel 1 day multifocal (somofilcon A) Soft (Hydrophilic) Daily Disposable Contact Lenses with UV Blocker come in the following ADD powers and are available in two different options.)

Option 1: Silicone Hydrogel 1 day multifocal (somofilcon A) Soft (Hydrophilic) Daily Disposable Contact Lens with UV Blocker Power Range:
o Lens “LOW” = “low” for spectacle near ADD lens (Max +2.25 ADD) o Lens “HIGH” = “high” for spectacle near ADD lens (+2.50 ADD or greater)

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Silicone Hydrogel 1 day (somofilcon A) Soft (Hydrophilic) Daily Disposable Contact Lenses with UV Blocker

Option 2: Silicone Hydrogel 1 day multifocal (somofilcon A) Soft (Hydrophilic) Daily Disposable Contact Lens with UV Blocker, 3 ADD (Binocular Progressive System) Power Range:
o LOW = (+0.75D to +1.25D) o MED = (+1.50D to +1.75D) o HIGH = (+2.00D to +2.50D)

The physical/optical properties of the lenses are:

· Refractive Index: · Visible Light Transmittance (380-780nm): · UVA Light Transmittance (315-380nm): · UVB Light Transmittance (280-315nm): · Surface Character: · Water Content: · Oxygen Permeability (Dk):
· Specific Gravity:

1.401 ± 0.005 95% <50.0% <5.0% Hydrophilic 56% ± 2% 60 x 10-11 (cm2/sec)(ml O2/ml x mmHg) at 35oC (Fatt Method for determination of oxygen permeability) 1.17

LENS PARAMETERS AVAILABLE

The lenses are available as follows:

Silicone Hydrogel 1 day (somofilcon A)

· Sphere Powers:
· Centre Thickness: · Diameter: · Base Curve:

-10.00D to +8.00D (-0.50D to -6.00D in 0.25D steps -6.50D to -10.00D in 0.50D steps +0.50D to +6.00D in 0.25D steps +6.50D to +8.00D in 0.50D steps) varies with power, e.g., 0.07 mm at -3.00D 14.10 mm 8.60 mm

Silicone Hydrogel 1 day toric (somofilcon A)

· Sphere Powers:
· Centre Thickness: · Diameter: · Base Curve: · Cylinder Options: · Axis:

-9.00D to +4.00D (-9.00D to -6.50D in 0.50D steps -6.00D to +4.00D in 0.25D steps) varies with power, e.g., 0.105 mm at -3.00D 14.30 mm 8.60 mm -0.75D, -1.25D, -1.75D, -2.25D 10o to 180o (10o steps)

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Silicone Hydrogel 1 day (somofilcon A) Soft (Hydrophilic) Daily Disposable Contact Lenses with UV Blocker

Silicone Hydrogel 1 day multifocal (somofilcon A)

· Centre Thickness: · Diameter: · Base Curve: · Multifocal ADD:

varies with power, e.g., 0.07 mm at -3.00D 14.10 mm 8.60 mm

Add powers are to be prescribed dependent on specific patient requirements as determined by the Eye Care Practitioner; however, as a guide, the Silicone Hydrogel 1 day multifocal (somofilcon A) Soft (Hydrophilic) Daily Disposable Contact Lenses with UV Blocker come in the following ADD powers and are available in two different options:

Option 1: Silicone Hydrogel 1 day multifocal (somofilcon A) Soft (Hydrophilic) Daily Disposable Contact Lens with UV Blocker Power Range:
o Lens “LOW” = “low” for spectacle near ADD lens (Max +2.25 ADD) o Lens “HIGH” = “high” for spectacle near ADD lens (+2.50 ADD or greater)

With Option 1, the “LOW” and “HIGH” ADD Powers are available in the following Sphere Powers:
o +6.00D to -8.00D in 0.25D steps

Option 2: Silicone Hydrogel 1 day multifocal (somofilcon A) Soft (Hydrophilic) Daily Disposable Contact Lens with UV Blocker, 3 ADD (Binocular Progressive System) Power Range:
o LOW = (+0.75D to +1.25D) o MED = (+1.50D to +1.75D) o HIGH = (+2.00D to +2.50D)

With Option 2, the 3 ADD Powers are available in the following Sphere Powers: o LOW: -1200D to -10.50D in 0.50D steps; -10.00D to +8.00D in 0.25D steps o MED: -12.00D to -10.50D in 0.50D steps; -10.00D to +8.00D in 0.25D steps o HIGH: -12.00D to -10.50D in 0.50D steps; -10.00D to +8.00D in 0.25D steps

ACTIONS
In its hydrated state, the Silicone Hydrogel 1 day (somofilcon A) Soft (Hydrophilic) Daily Disposable Contact Lens with UV Blocker when placed on the cornea acts as a refracting media to focus light rays on the retina.

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TRANSMITTANCE CURVES
The transmittance curve below compares the Silicone Hydrogel 1 day (somofilcon A) Soft (Hydrophilic) Daily Disposable Contact Lens with UV Blocker, a 24-yr. old human cornea and 25yr. old human crystalline lens.

Key: ___

Silicone Hydrogel 1 day (somofilcon A) Soft (hydrophilic) Daily Disposable Contact Lens with UV Blocker. The data shown was obtained from measurements taken through the central 3-5 mm portion for the thinnest marketed lens (-6.00DS lens with a centre thickness 0.070 mm).

24-year old human cornea1

– – – – – 25-year old crystalline lens2

1. Lerman, S., Radiant Energy and the Eye, MacMillan, New York, 1980, p.58, fig. 2-21 2. Waxler, M., Hitchins, V.M., Optical Radiation and Visual Health, CRC Press, Boca Raton,
Florida, 1986, p.19, fig. 5

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Silicone Hydrogel 1 day (somofilcon A) Soft (Hydrophilic) Daily Disposable Contact Lenses with UV Blocker
WARNING:
UV-absorbing contact lenses are NOT substitutes for protective UV-absorbing eyewear such as UV-absorbing goggles or sunglasses because they do not completely cover the eye and the surrounding area. You should continue to use UV-absorbing eyewear as directed.
Note: Long-term exposure to UV radiation is one of the risk factors associated with cataracts. Exposure is based on a number of factors such as environmental conditions (altitude, geography, cloud cover) and personal factors (extent and nature of outdoor activities). UV blocking contact lenses help provide protection against harmful UV radiation. However, clinical studies have not been done to demonstrate that wearing UV blocking contact lenses reduces the risk of developing cataracts or other eye disorders. Consult your Eye Care Practitioner for more information.
INDICATIONS (USES)
The Silicone Hydrogel 1 day (somofilcon A) Soft (Hydrophilic) Daily Disposable Contact Lens with UV Blocker is indicated for daily wear single use only for the correction of refractive ametropia (myopia and hyperopia) in phakic or aphakic persons with non-diseased eyes that may exhibit astigmatism up to 2.00 Diopters that does not interfere with visual acuity.
The Silicone Hydrogel 1 day toric (somofilcon A) Soft (Hydrophilic) Daily Disposable Contact Lens with UV Blocker is indicated for daily wear single use only for the optical correction of refractive ametropia (myopia and hyperopia) in phakic or aphakic persons with non-diseased eyes that may exhibit astigmatism up to 10.00 Diopters.
The Silicone Hydrogel 1 day multifocal (somofilcon A) Soft (Hydrophilic) Daily Disposable Contact Lens with UV Blocker is indicated for daily wear single use only for the optical correction of refractive ametropia (myopia and hyperopia) and/or presbyopia in phakic or aphakic persons with non-diseased eyes that may require a reading addition of +3.00 Diopters or less and may exhibit astigmatism up to 1.50 Diopters or less.
The Eye Care Practitioner should prescribe the lenses for daily wear single use only. The lenses are to be discarded upon removal; therefore, no cleaning or disinfecting is required.
CONTRAINDICATIONS, WARNINGS, PRECAUTIONS AND ADVERSE REACTIONS
For CONTRAINDICATIONS, WARNINGS, PRECAUTIONS AND ADVERSE REACTIONS, see Package Insert PI01089 for the Silicone Hydrogel 1 day (somofilcon A) Soft (Hydrophilic) Daily Disposable Contact Lenses with UV Blocker.

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FITTING GUIDELINES
1. GENERAL FITTING INSTRUCTIONS
Patient Selection
· Persons who would not or could not adhere to a recommended care regimen or are unable to place and remove the lenses should not be provided with them. Failure to follow handling and wearing instructions could lead to serious eye infections, which might result in corneal ulcers.
· Patient communication is vital because it relates not only to patient selection but also to ensuring patient compliance. It is also necessary to discuss the information contained in the Patient Information Booklet with the patient at the time of the initial examination.
· Patients selected to wear the lenses should be chosen for their motivation to wear contact lenses, general health and co-operation. The Eye Care Practitioner must take care in selecting, examining and instructing contact lens patients. Patient hygiene and willingness to follow practitioner instructions are essential to their success.
· Patients who do not meet these criteria should not be provided with contact lenses.
Pre-fitting Examination
· A detailed history is crucial to determining patient needs and expectations. Your patient should be questioned regarding vocation, desired lens wearing time (full or part-time), and desired lens usage (reading, recreation or hobbies).
· Initial evaluation of the trial lens should be preceded by a complete eye examination, including visual acuity with and without correction at both distance and near, keratometry and slit lamp examination.
· Perform a preliminary evaluation to determine distance refraction as well as to rule out contraindications to contact lens wear described in the Package Insert.
· Lens power is determined from the patient’s spherical equivalent prescription corrected to the corneal plane.
· Place lens on the eye. Allow the lens to remain on the eye long enough to achieve a state of equilibrium. Small variation in the tonicity, pH or the lens solutions and individual tear composition may cause slight changes in fitting characteristics.
· If the initial lenses selection covers the patient’s cornea fully, provides discernible movement (0.10 mm to 0.30 mm) after blink, is comfortable for the patient and provides satisfactory visual performance, it is a well-fitted lens and can be dispensed (see Criteria for a Well-Fitted Lens under Clinical Assessment below).

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Clinical Assessment
1. Criteria for a Well-Fitted Lens: – 0.5 to1.0 mm movement in primary gaze – 1.0 mm to1.5 mm movement in upgaze – centration in primary gaze
2. Characteristics of a Tight Lens – <0.5 mm movement in primary or upgaze
3. Characteristics of a Loose Lens – >1.0 mm movement in primary gaze – >1.5 mm movement in upgaze – poor centration in primary and upgaze
· Full coverage of the cornea is defined as the lens edge extending beyond the limbal area in all directions. Initial lens evaluation must be done after at least 10 minutes of lens wear to allow the lens to stabilize and any tearing to subside.
· Following a blink, the lens should move vertically on the patient’s eye about 0.1 mm to 0.30 mm. Using a slit lamp, this movement can be estimated by comparing it with the 1.0 mm lens peripheral bevel width.
· When lenses are dispensed for vision correction, the wearer must be supplied with an appropriate wearing regimen and must fully understand all lens handling and emergency lens care instructions to prevent lens damage as described in the Package Insert and the Patient Information Booklet.
Follow-up Care
a) Follow-up examinations are necessary to ensure continued successful contact lens wear. From the day of dispensing and optimum follow-up schedule for daily wear is recommended.
b) Prior to a follow-up examination, the contact lens should be worn for at least 6 to 8 hours and the patient should be asked to identify any problems which might be occurring related to contact lens wear.
c) With lenses in place on the eyes, evaluate a fitting performance to assure that Criteria for a Well-Fitted Lens continue to be satisfied. Examine the lenses closely for surface deposition and/or damage.
d) After lens removal, instill sodium fluorescein (unless contraindicated) into the eyes and conduct a thorough biomicroscopy examination. · Presence of vertical corneal striae in the posterior central cornea and/or corneal neovascularization is indicative of excessive cornea edema. · Presence of corneal staining and/or limbal-conjunctival hyperemia can be indicative of an unclean lens, excessive lens wear and/or poorly fitting lens. · Papillary conjunctival changes may be indicative of an unclean and/or damaged lens.
If any of the above observations are judged abnormal, various professional judgements are necessary to alleviate the problem and restore the eye to optimal conditions. If the Criteria of a

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Well-Fitted Lens is not satisfied during any follow-up examination, the patient should be re-fitted with a more appropriate lens.

2. SPHERICAL LENS FITTING GUIDELINES

A spherical over-refraction should be performed to determine the final lens power after the lens fit is judged acceptable. The spherical over-refraction should be combined with the trial lens power to determine the final lens prescription. The patient should experience good visual acuity with the correct lens power unless there is excessive residual astigmatism.

If vision is acceptable, perform a slit lamp examination to assess adequate fit (centration and movement). If fit is acceptable, dispense the lenses instructing the patient to return in one week for assessment.

3. TORIC FITTING GUIDELINES

Although most aspects of the fitting procedure are identical for all types of soft contact lenses, including torics, there are some additional steps and/or rules to follow to assure the proper fit of toric lenses.

The only new steps that must be followed for the Silicone Hydrogel 1 day toric (somofilcon A) Soft (Hydrophilic) Daily Disposable Contact Lens with UV Blocker are that you must determine the stability, repeatability and drift angle of the lens axis so that you can prescribe the correct lens axis for your patient.

A. How to determine Lens Cylinder and Axis Orientation for the Silicone Hydrogel 1 day toric (somofilcon A) Soft (Hydrophilic) Daily Disposable Contact Lenses with UV Blocker

1. Locate the Orientation Mark To help determine the proper orientation of the toric lens, you will find one mark about 1 mm from the lens edge representing the vertical position of the lens at 6 o’clock. You will need a biomicroscope and a 1 mm or 2 mm parallelpiped to highlight the mark when the lens is fitted to the eye. There are a number of techniques which you can use to improve the visibility of the 6 o’clock mark. With your parallelpiped and medium magnification (10x or 15x), slowly pan down the lens, looking just below the direct illumination at the retroilluminated area. Backlighting the mark this way should make it more visible. Sometimes manipulating the lower lid may be necessary to uncover the mark.

2. Observe Lens Rotation and Stability Observe the position and stability of the 6 o’clock mark. The 6 o’clock mark is not a “must” however; the absolute requirement is that the axis position be stable and repeatable.

The mark may stabilize somewhat left or right (drift) of the vertical meridian and still enable you to fit a toric lens for that eye, as long as the lens always returns to the same “drift axis” position after settling. The deviation can be compensated for in the final prescription. Your objective is to ensure that whatever position the initial lens assumes near 6 o’clock, this position must be stable and repeatable. With full eye movement or

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heavy blink, you may see the marks swing away, but they must return quickly to the original stable position. If the lens does not return quickly, you may need to select a different lens.
Assessing Rotation Imagine the eye as a clock dial and every hour represents a 30o interval. If the orientation mark of the initial lens stabilizes somewhat left or right of the vertical position, the final lens will orient on the eye with the same deviation. You can use an axis reticule in the slit lamp or use a line-scribed lens in a spectacle trial frame to measure or estimate the “drift angle” of the cylinder axis.
To compensate for this “drift”, measure or estimate the “drift”, then add or subtract it from the refractive axis to determine the correct cylinder axis. Use the LARS (Left Add, Right Subtract) method to determine which direction to compensate.
B. How to determine the Final Lens Power for the Silicone Hydrogel 1 day toric (somofilcon A) Soft (Hydrophilic) Daily Disposable Contact Lenses with UV Blocker
When the diagnostic lens has its axis aligned in the same meridian as the patient’s refractive axis, a spherocylindrical over-refraction may be performed and visual acuity determined. However, in the case of crossed axes, such as when the diagnostic lens axis is different from the patient’s refractive axis, it is not advisable to over-refract because of the difficulty in computing the resultant power.
In fitting contact lenses, it is customary to prescribe the full power in the sphere. In the cylinder, however, any lens rotation is visually disturbing to the patient, so it is more practical to prescribe as weak a cylinder as possible. So, here is how to determine the final lens power.
For the Sphere: If sphere alone or combined sphere and cylinder Rx>±4.00D, compensate for vertex distance. If sphere alone or combined sphere and cylinder Rx4.00D, vertex compensation is not necessary.
For the Cylinder: Adjust the axis by the drift angle using LARS. Choose a cylinder that is 0.25D from the refractive cylinder.
Case Examples
Example 1 Manifest (spectacle) refraction: O.D. -2.50 -1.25 x 180 20/20 O.S. -2.00 -1.00 x 180 20/20
Choose a diagnostic lens for each eye with an axis as close to 180o as possible. Place the lens on each eye and allow a minimum of 3 minutes for it to equilibrate, based on the patient’s initial response to the lens.

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Check the orientation of the axis mark. If the bottom axis mark is in the 6 o’clock position on both eyes, choose the appropriate cylinder as listed previously.

Here is the Rx Prescribed/Ordered: O.D. -2.50 -1.25 x 180 O.S. -2.00 -0.75 x 180

Example 2 Manifest (spectacle) refraction: O.D. -3.00 -1.00 x 90 20/20 O.S. -4.75 -2.00 x 90 20/20

Choose a diagnostic lens of -3.00 -0.75 x 90 for the right eye and -4.50 -1.75 x 90 for the left eye, the nearest lenses available to the spherical power and axis needed. Place the lens on each eye and allow a minimum of 3 minutes for it to equilibrate. The orientation mark on the right lens rotates left from the 6 o’clock position by 10o.

The fitting indicates the following:

Right Eye Compensate the 10o axis drift by adding it to the manifest refraction axis.

Here is the Rx prescribed: O.D. -3.00 -0.75 x 100

Left Eye
The lens on the left eye shows good centration, movement and a consistent tendency for the mark to drift right by 10o from the 6 o’clock position following a forced blink.

Since the manifest refraction called for a power of -4.75D, adjust for the vertex distance and reduce the sphere by 0.25D and prescribe the -1.75D cylinder. Compensate for the 10° axis drift by subtracting it from the manifest refraction.

Here is the Rx prescribed: O.S. -4.50 -1.75 x 80.

If vision is acceptable, perform a slit lamp examination to assess adequate fit (centration and movement). If fit is acceptable, dispense the lenses instructing the patient to return in one week for reassessment.

4. MULTIFOCAL FITTING GUIDELINES

A. Presbyopic Needs Assessment and Patient Education.

Multifocal contact lenses may produce compromise to vision under certain circumstances and the patient should understand that they might not find their vision acceptable in specific situations (i.e., reading a menu in a dimly lit restaurant, driving at night in rainy/foggy conditions, etc.). Therefore, caution should be exercised when the patient is wearing the correction for the first time until they are familiar with the vision provided in visually challenging environments. Occupational and environmental visual demands should be considered. If the patient requires critical visual acuity and stereopsis, it should be determined by trial whether this patient can function adequately with

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Silicone Hydrogel 1 day (somofilcon A) Soft (Hydrophilic) Daily Disposable Contact Lenses with UV Blocker
the Silicone Hydrogel 1 day multifocal (somofilcon A) Soft (Hydrophilic) Daily Disposable Contact Lenses with UV Blocker for the correction of presbyopia. The Silicone Hydrogel 1 day multifocal (somofilcon A) Soft (Hydrophilic) Daily Disposable Contact Lenses with UV Blocker for the correction of presbyopia may not be optimal for such activities as:
1. Visually demanding situations such as operating potentially dangerous machinery or performing other potentially hazardous activities; and
2. Driving automobiles (e.g., driving at night). Patients need to ensure they meet state driver’s license requirements and should be advised to not drive with this correction, OR may require that additional over-correction be prescribed.
The Silicone Hydrogel 1 day multifocal (somofilcon A) Soft (Hydrophilic) Daily Disposable Contact Lenses with UV Blocker for the correction of presbyopia are not recommended for patients who have -1.50D or greater of refractive cylinder as this level of uncorrected cylinder may lead to additional visual compromise.
The Silicone Hydrogel 1 day multifocal (somofilcon A) Soft (Hydrophilic) Daily Disposable Contact Lenses with UV Blocker come in the following ADD powers and are available in two different options:
Option 1: Silicone Hydrogel 1 day multifocal (somofilcon A) Soft (Hydrophilic) Daily Disposable Contact Lens with UV Blocker Power Range:
o Lens “LOW” = “low” for spectacle near ADD lens (Max +2.25 ADD) o Lens “HIGH” = “high” for spectacle near ADD lens (+2.50 ADD or greater)
Option 2: Silicone Hydrogel 1 day multifocal (somofilcon A) Soft (Hydrophilic) Daily Disposable Contact Lens with UV Blocker, 3 ADD (Binocular Progressive System) Power Range:
o LOW = (+0.75D to +1.25D) o MED = (+1.50D to +1.75D) o HIGH = (+2.00D to +2.50D)
B. Silicone Hydrogel 1 day multifocal (somofilcon A) Soft (Hydrophilic) Daily Disposable Contact Lens with UV Blocker Fitting Guide
It is strongly recommended that the manufacturer’s fitting guidelines are followed to obtain an optimum visual result. The selection of ADD power should follow the fitting guidance in Table 1.
Step 1 – Determine:
Spectacle refraction distance and near: – obtain vertex corrected, least minus most plus, best sphere (BS), distance vision correction with near addition. Ocular dominance: – wearing distance correction viewing 6/6 line binocularly pass a +1.50 DS lens alternately in front of each eye. The dominant eye is that for which the vision is least affected by the blurring lens. (Or see monovision eye selection.)

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Step 2 – Lens selection

Starting with BS for distance vision, use the table below to select the initial trial lens:

Hyperopes Myopes

Ocular Dominance
Dominant Eye Non Dominant Eye Dominant Eye Non Dominant Eye

Spectacle ADD
+0.75 to +1.75 BS LOW BS +0.25ds LOW BS LOW BS LOW

Spectacle ADD
+2.00 to +2.25 BS+0.25ds LOW BS +0.50ds LOW BS LOW BS+0.50ds LOW

Spectacle ADD
+2.50 and over BS +0.25ds LOW BS +0.25ds HIGH BS +0.25ds LOW BS +0.25ds HIGH

Table 1 Fitting guidelines for initial lens selection for the Silicone Hydrogel 1 day multifocal (somofilcon A) Soft (Hydrophilic) Daily Disposable Contact Lenses with UV Blocker

BS = best sphere as described in Step 1 above LOW = Low Addition trial lens HIGH = High Addition trial lens

Examples of initial lens selection:

1. Hyperope with right eye dominant

Least minus /most plus vertex corrected prescription of:

Right Eye +1.75/-050 x 180 Left Eye +2.25DS ADD 2.50

Adjusted for BS:

Right eye +1.50 DS

Left eye =+2.25 DS

Initial lens selection using Table 1:

Right eye +1.75 LOW (addition of +0.25 is made to BS and a LOW Add selected for dominant eye) Left eye +2.50 HIGH (addition of +0.25 is made to BS and a HIGH Add selected for nondominant eye).

2. Myope left eye dominant

Least minus /most plus correction vertex corrected prescription of:

Right eye -3.00/-0.75 x 180 Left eye -2.75/-0.25 x 170 ADD 1.25

Adjusted for BS:

Right eye -3.25

Left eye -2.75

Initial trial lens selection using Table 1:

Right eye -3.25 LOW (no addition is made to BS and non-dominant eye has LOW Add) Left eye -2.75 LOW (no addition is made to BS and dominant eye has LOW Add)

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Step 3

Allow initial lenses to settle for 20 minutes preferably encouraging this adaption period to occur outside the consulting room and in a `real world’ setting to better mimic normal viewing habits.

Step 4

Acquire patient’s subjective assessment of lens performance both distance and near using a 1-10 scale. Do this prior to taking visual acuity measurements.

Step 5

Assess distance and near vision binocularly and monocularly. Demonstrate the vision under various lighting conditions and at distance intermediate and near using wherever possible objects and viewing distances common to patient, e.g., computer, mobile phone, driving distances, etc. Make adjustments in power as necessary (see Multifocal Troubleshooting ­ Silicone Hydrogel 1 day multifocal (somofilcon A) Soft (Hydrophilic) Daily Disposable Contact Lens with UV Blocker below).

Step 6

Once distance and near vision are acceptable assess fit and centration of lens using slit lamp and dispense trial lenses with a follow up assessment appointment made for a week to ten days’ time. (See Clinical Assessment and Follow-up Care.)

C. Silicone Hydrogel 1 day multifocal (somofilcon A) Soft (Hydrophilic) Daily Disposable Contact Lens with UV Blocker, 3 ADD (Binocular Progressive System) Contact Lens Fitting Guide

It is strongly recommended that the manufacturer’s fitting guidelines are followed to obtain an optimum visual result. The selection of ADD power should follow the fitting guidance in Table 2.

Step 1

Start with an up-to-date spectacle refraction, prescribing maximum plus for binocular distance vision (do not over-minus). When determining spectacle add, consider patient’s lifestyle vision needs (handheld device or other reading material, desktop computer, etc.).

Step 2

Determine spherical equivalent for contact lens distance sphere power (corrected for vertex distance, if correction greater than ± 4.00D). Ensure refractive astigmatism is no more than 0.75DC in both eyes.

Step 3

Determine distance eye dominance with +1.00D blur method; if inconclusive, determine dominance with sighting method.

Step 4

For initial trial lenses, use this table below to determine which add (LOW, MED or HIGH) to select along with the contact lens distance sphere power.

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Table 2 Fitting guidelines for initial lens selection for the Silicone Hydrogel 1 day multifocal (somofilcon A) Soft (Hydrophilic) Daily Disposable Contact Lens with UV Blocker, 3 ADD
(Binocular Progressive System) Contact Lenses

Step 5

Allow patient to experience lenses for 10 to 15 minutes in “real world” before assessing vision.

Step 6

Check patient’s vision binocularly with room lights on. Assess vision at different viewing distances (for example, near vision with handheld device or other reading material; distance vision in surrounding environment under normal lighting conditions). [See Multifocal Troubleshooting ­ Silicone Hydrogel 1 day multifocal (somofilcon A) Soft (Hydrophilic) Daily Disposable Contact Lens with UV Blocker, 3 ADD (Binocular Progressive System) below.]

If acceptable, dispense initial trial lenses.

D. Multifocal Troubleshooting ­ Silicone Hydrogel 1 day multifocal (somofilcon A) Soft (Hydrophilic) Daily Disposable Contact Lens with UV Blocker

Unacceptable Distance Vision: Starting with 0.25 DS steps and dominant eye using handheld trial lens, determine the amount of additional plus or least minus over one or both eyes that improves distance vision without affecting near vision.

Unacceptable Near Vision: Starting with 0.25 DS steps and non-dominant eye using handheld trial lenses determine the most plus least minus over one or both eyes that improves near vision without affecting distance vision.

E. Multifocal Troubleshooting ­ Silicone Hydrogel 1 day multifocal (somofilcon A) Soft (Hydrophilic) Daily Disposable Contact Lens with UV Blocker, 3 ADD (Binocular Progressive System)

Unacceptable Distance Vision: Have patient keep both eyes open and offer ±0.25D to the dominant eye only (use handheld lenses or a flipper; do not use a phoropter). If distance vision improves, check that near vision is

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maintained. Adjust by a maximum of ±0.25D, as applicable, the contact lens distance sphere power of the dominant eye lens.
a. If the dominant eye’s distance vision enhancement does not improve distance vision, offer ±0.25D binocularly and check that near vision is maintained.
b. If near vision worsens with the adjustment of lens power on the dominant eye, follow the Near vision enhancement steps below while keeping the new over-refraction handheld lens over the dominant eye.
Unacceptable Near Vision: Have patient keep both eyes open and offer ±0.25D to the non-dominant eye only (use handheld lenses or a flipper; do not use a phoropter). If near vision improves, check that distance vision is maintained. Adjust the distance sphere power of the non-dominant eye lens by a maximum of ±0.25D. For those wearing the High add, the adjustment can be extended to up to ±0.50D.
a. If the non-dominant eye’s near vision enhancement does not improve near vision, offer ±0.25D binocularly and check that distance vision is maintained.
b. If distance vision worsens with the adjustment of lens power on the non- dominant eye, follow the Distance vision enhancement steps above while keeping the new over-refraction handheld lens over the non-dominant eye.
Tips for multifocal fitting – Careful patient selection and set correct expectations with them. – Using up-to-date spectacle prescription, determine spherical equivalent distance power (corrected for vertex distance). – Use up to date most plus least minus vertex distance corrected best sphere prescription. – Adhere to manufacturer’s suggested fitting guidelines. – Assess vision in good illumination and with real life scenarios. – Have patient keep both eyes open and use handheld lenses or a flipper; do not use a phoropter. – Assess vision binocularly using handheld lenses. – Use 0.25D steps when altering lenses. It is unusual for more than 0.25D changes to be needed. – Take care when adding additional minus power for distance vision so that near vision is not affected. – Always use the lowest ADD power possible to achieve acceptable near vision. – If patient is happy with visual acuity, do not attempt to refine to best Snellen acuity as with spectacle refraction. The proviso being subjective assessment is clinically and professionally acceptable. – Prescribe maximum plus power for binocular distance vision; do not over minus.
5. MONOVISION (SPHERICAL AND TORIC FITTING GUIDELINES)
1. Patient Selection
A. Monovision Needs Assessment For a good prognosis, the patient should have adequately corrected distance and near visual acuity in each eye. The amblyopic patient with significant astigmatism (greater than one diopter) in one eye may not be a good candidate for monovision.

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Occupational and environmental visual demands should be considered. If the patient requires critical vision (visual acuity and stereopsis), it should be determined by trial whether this patient can function adequately with monovision. Monovision contact lens wear may not be optimal for such activities as:
(1) Visually demanding situations such as operating potentially dangerous machinery or performing other potentially hazardous activities; and
(2) Driving automobiles (e.g., driving at night). Patients who cannot pass their state driver’s license requirements with monovision correction should be advised to not drive with this correction, OR may require that additional over-correction be prescribed.
B. Patient Education
Not all patients function equally well with monovision correction. Patients may not perform with this correction as they have with bifocal reading glasses. Each patient should understand that monovision, as well as other presbyopic contact lenses, or other alternative, can create a vision compromise that may reduce visual acuity and depth perception for distance and near tasks. During the fitting process, it is necessary for the patient to realize the disadvantages as well as the advantages of clear near vision in straight ahead and upward gaze that monovision contact lenses provide.
2. Eye Selection
Generally, the non-dominant eye is corrected for near vision. The following test for eye dominance can be used.
A. Ocular Preference Determination Methods
Method 1 ­ Determine which eye is the “sight eye.” Have the patient point to an object at the far end of the room. Cover one eye. If the patient is still pointing directly at the object, the eye being used is the dominant (sighting) eye.
Method 2 ­ Determine which eye will accept the added power with the least reduction in vision. Place a trial spectacle near add lens in front of one eye and then the other while the distance refractive error correction is in place for both eyes. Determine whether the patient functions best with the near add lens over the right or left eye.
B. Refractive Error Method
For anisometropic corrections, it is generally best to fit the more hyperopic (less myopic) eye for distance and the more myopic (less hyperopic) eye for near.
C. Visual Demands Method
Consider the patient’s occupation during the eye selection process to determine the critical vision requirements. If a patient’s gaze for near tasks is usually in one direction correct the eye on that side for near.

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Example:

A secretary who places copy to the left side of the desk will usually function best with the near lens on the left eye.

3. Special Fitting Considerations

Unilateral Lens Correction: There are circumstances where only one contact lens is required. As an example, an emmetropic patient would only require a near lens while a bilateral myope may require only a distance lens.

Example:

A presbyopic emmetropic patient who requires a +1.75 diopter add would have a +1.75 lens on the near eye and the other left without a lens.

A presbyopic patient requiring a +1.50 diopter add who is ­2.50 diopters myopic in the right eye and ­1.50 diopters myopic in the left eye may have the right eye corrected for distance and the left uncorrected for near.

4. Near Add Determination

Always prescribe the lens power for the near eye that provides optimal near acuity at the midpoint of the patient’s habitual reading-distance. However, when more than one power provides optimal reading-performance, prescribe the least plus (most minus) of the powers.

5. Trial Lens Fitting

A trial fitting is performed in the office to allow the patient to experience monovision correction. Lenses are fit according to the directions in the general fitting guidelines and a base curve selection described in the earlier guide.

Case history and standard clinical evaluation procedure should be used to determine the prognosis. Determine which eye is to be corrected for distance and which eye is to be corrected for near. Next, determine the near add. With trial lenses of the proper power in place, observe the reaction to this mode of correction.

Immediately after the correct power lenses are in place, walk across the room and have the patient look at you. Assess the patient’s reaction to distance vision under these circumstances. Then have the patient look at familiar near objects, such as a watch face or fingernails. Again, assess the reaction. As the patient continues to look around the room at both near and distance objects, observe the reactions. Only after these vision tasks are completed should the patient be asked to read print. Evaluate the patient’s reaction to large print (e.g., typewritten copy) at first and then graduate to news print and finally smaller type sizes.

After the patient’s performance under the above conditions is completed, tests of visual acuity and reading ability under conditions of moderately dim illumination should be attempted.

An initial unfavorable response in the office, while indicative of a guarded prognosis, should not immediately rule out a more extensive trial under the usual conditions in which a patient functions.

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6. Adaptation
Visually demanding situations should be avoided during the initial wearing period. A patient may at first experience some mild blurred vision, dizziness, headaches and a feeling of slight imbalance. You should explain the adaptational symptoms to the patient. These symptoms may last for a brief minute or for several weeks. The longer these symptoms persist, the poorer the prognosis for successful adaptation.
To help in the adaptation process, the patient can be advised to first use the lenses in a comfortable familiar environment such as in the home.
Some patients feel that automobile driving performance may not be optimal during the adaptation process. This is particularly true when driving at night. Before driving a motor vehicle, it may be recommended that the patient be a passenger first to make sure that their vision is satisfactory for operating an automobile. During the first several weeks of wear (when adaptation is occurring), it may be advisable for the patient to only drive during optimal driving conditions. After adaptation and success with these activities, the patient should be able to drive under other conditions with caution.
7. Other Suggestions
The success of the monovision technique may be further improved by having your patient follow the suggestions below:
· Having a third contact lens (distance power) to use when critical distance viewing is needed. · Having a third contact lens (near power) to use when critical near viewing is needed. · Having supplemental spectacles to wear over the monovision contact lenses for specific visual
tasks may improve the success of monovision correction. This is particularly applicable for those patients who cannot meet state licensing requirements with a monovision correction. · Make use of proper illumination when carrying out visual tasks.
Success in fitting monovision can be improved by the following suggestions:
· Reverse the distance and near eyes if a patient is having trouble adapting. · Refine the lens powers if there is trouble with adaptation. Accurate lens power is critical for
presbyopic patients. · Emphasize the benefits of the clear near vision in straight-ahead and upward gaze with
monovision.
Note: The decision to fit a patient with monovision correction is most appropriately left to the Eye Care Practitioner in conjunction with the patient after carefully considering the patient’s needs.

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WEARING AND APPOINTMENT SCHEDULE
The wearing schedule should be determined by the prescribing Eye Care Practitioner for each individual patient, based upon a full examination and patient history as well as the practitioner’s experience and professional judgement. Patients should be given a wearing schedule and carefully instructed on the handling and care of their lenses as discussed in the Package Insert. Also, be sure to complete the personal wearing/replacement schedule record in the Patient Information Booklet. The lens must be removed, cleaned, disinfected or disposed of and replaced with a new lens as determined by the prescribing Eye Care Practitioner. (See the factors discussed in the WARNINGS section.)
Follow-up examinations are necessary to ensure continued successful contact lens wear and to ascertain the effects of the lenses on the eyes. The following schedule is a suggested guideline for daily wear contact lenses:
· 24 hours post-dispensing · 7 days · 1 month · 3 months · every 6 months thereafter
LENS APPLICATION AND REMOVAL
Eye Care Practitioners should carefully instruct patients about the following lens care and safety precautions for application and removal of contact lenses.
Handling Precautions:
· Always wash and rinse hands before handling lenses. Do not get cosmetics, lotions, soaps, creams, deodorants, or sprays in the eyes or on the lenses. It is best to put on lenses before putting on makeup.
· Advise the patient to always handle the same lens, the right or the left, first in order to avoid mix-ups.
Lens Application:
Eye Care Practitioners should advise patients of the following steps when applying their lenses:
1. Examine the lens to be sure it is moist, clean, clear and free of any nicks or tears. 2. Make sure the lens is not turned inside out. Simply inspect the lens to see if the edges turn
out. If they do, the lens is inside out. Should the lens be accidentally placed on the eye inside-out, one of the following signs should signal that the lens is to be removed and replaced correctly:
· Less than usual comfort · The lens folds on the eye · Excessive lens movement on blink · Blurred vision

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Eye Care Practitioners should advise patients of the following technique for applying lenses:

One Hand Technique:

Place the lens on the index finger. Keeping the head up, look straight ahead, pull down the lower eyelid with the middle finger of the placement hand. Look up steadily at a point above. Then place the lens on the lower white part of the eye. Remove the index finger and slowly release the lower lid. Look down to position the lens properly. Close the eyes for a moment: the lens will center itself on the eye.

Two Hand Technique:

With the lens on the index finger, use the middle finger of the other hand to pull the upper lid against the brow. Use the middle finger of the placement hand to pull down the lower lid and then place the lens centrally on the eye. While holding this position, look downward to position the lens properly. Slowly release the eyelids.

If the lens feels uncomfortable, look in a mirror and gently place a finger on the edge of the contact lens and slowly slide the lens away from the nose while looking in the opposite direction. Then by blinking, the lens will re- center itself.

If after placement of the lens, the vision is blurred, check the following: a) Cosmetics or oils on the lens. Clean, rinse, disinfect and place on the eye again. b) The lens is on the wrong eye. c) The lens is inside-out (it would also not be as comfortable as normal).

Lens Removal

Eye Care Practitioners should advise patients that hands must be washed, rinsed and thoroughly dried with a lint free towel before removing lenses.

CAUTION: Always advise patients to be sure that the lens is in the correct position on the eye before trying to remove it (a sample check of the vision, closing one eye at a time, will tell the patient if the lens is in the correct position).

Instruct the patient to look up and slowly pull down the lower lid with the middle finger of the removal hand and place the index finger on the lower edge of the lens. Slide the lens down to the lower white part of the eye. Squeeze the lens lightly between the thumb and the index finger. Avoid sticking the edges of the lens together. Discard the worn lenses.

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LENS CARE DIRECTIONS
1. Basic Lens Care Instructions
Eye Care Practitioners should review lens care directions with the patient, including basic lens care information.
It is essential that patients understand and use good hygienic methods in the care and handling of their new lenses. Cleanliness is the first and most important aspect of proper contact lens care. In particular, hands should be clean and free of any foreign substances when lenses are handled. The procedures are:
· Always, wash, rinse and dry your hands before handling contact lenses. · Do not use saliva or anything other than the recommended solutions for lubricating or rewetting
lenses. Do not put lenses in your mouth. · Never rinse your lenses in water from the tap. There are two reasons for this:
a. Tap water may contain impurities that can contaminate or damage your lenses and may lead to eye infection or injury.
b. You might lose your lens down the drain.
For Single Use Daily Wear
Remember there is no cleaning or disinfection needed with the Silicone Hydrogel 1 Day (somofilcon A) Soft (Hydrophilic) Daily Disposable Contact Lenses with UV Blocker prescribed for daily wear single use wear only. The lenses are to be discarded upon removal, and have replacement lenses or spectacles available.
2. Care for a Sticking (Non-Moving) Lens
If the lens stops moving or cannot be removed, you should instruct the patient to apply a few drops of the recommended lubricating solution directly to your eye and wait until the lens begins to move freely on the eye before removing it. If non-movement of the lens continues, the patient is instructed to immediately consult their Eye Care Practitioner.
3. Care for a Dehydrated Lens
If a soft, hydrophilic lens is exposed to air while off the eye, it may become dry and brittle. If this happens, dispose of the lens and use a fresh one.
4. Emergencies
If chemicals of any kind (household products, gardening solutions, laboratory chemicals, etc.) are splashed into your eyes, you should: FLUSH EYES IMMEDIATELY WITH TAP WATER AND THEN REMOVE LENSES PROMPTLY. CONTACT YOUR EYE CARE PRACTITIONER OR VISIT A HOSPITAL EMERGENCY ROOM WITHOUT DELAY.

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HOW SUPPLIED
Each lens is supplied sterile in a blister pack containing isotonic saline solution with 0.005% or 0.020% w/v poloxamer 407 added. The blister pack is labelled with the base curve, diameter, dioptric power, cylinder and axis for toric lenses, multifocal add for multifocal lenses, manufacturing lot number, and expiration date of the product, and the presence of a UV-blocker is noted.
Do not use if blister pack has been broken or damaged.
REPORTING OF ADVERSE REACTIONS
All serious adverse experiences and adverse reactions observed in patients should be reported to:
CooperVision, Inc. Attn: Product Services 711 North Road Scottsville, New York 14546 800-341-2020 www.coopervision.com

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