Bausch & Lomb Optima 38/SP User Manual

SOFLENS
®
(polymacon)
Contact Lenses
IMPORTANT:
This package insert is effective as of March 1997 and supersedes all prior inserts for the products described below. Please read carefully and keep this information for future use. This package insert is intended for the eye care practitioner, but should be made available to patients upon request. The eye care practitioner should provide the patient with the patient instructions that pertain to the patient’s prescribed lens.
CAUTION:
Federal (U.S.A.) Law Prohibits Dispensing Without Prescription.
VISION CORRECTION USE
For all BAUSCH & LOMB
®
SOFLENS®(polymacon) Contact Lenses (including clear, visibility tinted, cosmetically tinted, daily wear or extended wear polymacon hydrophilic contact lenses)
SOFLENS includes the following types:
O3, O4, Occasions™ Multifocal, Optima™ 38, Optima™ 38/SP, U3, U4, Sofspin™, HO3, HO4, B3, B4, P.A.1, F3, H3, H4, N and NaturalTint
®
Contact Lenses
Spherical Lenses for: Nearsightedness (Myopia), Farsightedness (Hyperopia), Presbyopia, Not-aphakic and/or after Cataract Surgery (Aphakia)
DESCRIPTION
All Bausch & Lomb SOFLENS
®
(Clear and Visibility Tinted) Contact Lenses are available as Spherical lenses. The lens material (polymacon), is a hydrophilic polymer of 2-hydroxyethyl methacrylate, and is 38.6% water by weight when immersed in saline solution. These lenses are hemispherical flexible shells of the following dimensions:
• Chord Diameter: 12.0mm to 18.0mm
• Center Thickness: 0.02mm to 1.0mm
• Posterior Apical Radius: 5.0mm to 12.0mm
• Powers (Spherical): See “Indications”
The physical/optical properties of the lens are:
Specific Gravity: 1.12 Refractive Index: 1.43 Surface Character: Hydrophilic Water Content: 38.6%
Oxygen Permeability (Dk):* UNITS
SOFLENS
®
Contact Lens (clear) 8.4
SOFLENS
®
Visibility Tinted Contact Lens 8.5
NaturalTint
®
Contact Lens Average 9.3
Light Transmittance: C.I.E.** Y Value
SOFLENS
®
Contact Lens (Clear) - approximately 98%
SOFLENS
®
Visibility
Tinted Contact Lens - approximately 86%
to 98%
NaturalTint
®
Contact Lenses Blue - approximately 82% Aqua - approximately 84% Green - approximately 76% Brown - approximately 62%
*Dk = units x 10
-11
[cm3O2(STP) x cm]/(sec x cm2x
mm Hg) at 34°C (Polarographic Method)
**CIE light transmittance will differ by average thickness
across the optical zone for lenses tinted with Reactive Blue 246.
SOFLENS
®
(polymacon) Visibility Tinted Contact Lenses (including Occasions™ Multifocal, P.A.1, Sofspin,™ O3, O4, Optima™ 38 and Optima™ 38/SP) are tinted blue using Reactive Blue 246 or 1,4-bis[4-(2-methacry­loxyethyl)phenylamino]anthraquinone to make the lens more visible for handling purposes. The apparent color of the SOFLENS
®
(polymacon) Visibility Tinted Contact Lenses may decrease slightly following repeated disinfection. This will not affect the safety or performance of the lens.
NaturalTint
®
Contact Lenses are tinted with any of, or with combinations of, the following lens colors: blue, green, aqua, brown and yellow. These lenses are tinted with synthetic dyes
(Blue) 7,16-Dichloro-6,15-dihydro-5,9,14,18­anthrazinetetrone,
(Green) 16,17-Dimethoxydinaphtho[1,2,3-cd:3',2',1'­lm]perylene-5,10-dione,
(Brown) 16,23-Dihydrodinaphtho[2,3-a:2',3'-i], naphtho[2',3':6,7] indolo[2,3-c]carbazole­5,10,15,17,22,24-hexone or
(Yellow) N,N'-(9,10-Dihydro-9,10-dioxo-1,5­anthracenediyl)bisbenzamide) that impart colors to the lens which combine with eye color to produce a natural appearance.
ACTIONS
In its hydrated state, the BAUSCH & LOMB
®
SOFLENS
®
(polymacon) Contact Lens when placed on the cornea acts as a refracting medium to focus light rays on the retina.
INDICATIONS (USES) Daily Wear
The BAUSCH & LOMB
®
SOFLENS®(polymacon) Contact Lenses are indicated for daily wear for the correction of refractive ametropia (myopia and hyperopia) in aphakic
and/or non-aphakic persons with non-diseased eyes, that exhibit astigmatism of 2.00 diopters or less and can obtain satisfactory visual acuity, in a power range of –20.00 to +20.00 diopters.
Occasions™ Multifocal and P.A.1 are indicated for daily wear for the correction of refractive ametropia (myopia and hyperopia) in phakic, presbyopic persons with non­diseased eyes, that exhibit astigmatism of 2.00 diopters or less. The bifocal lens is indicated for patients requiring up to 2.00 diopters of refractive add. The lens provides a nominal functional add of 1.50 diopters in a power range of –9.00 to +6.00 for Occasions™ Multifocal, and –6.00 to +6.00 diopters for P.A.1.
NaturalTint
®
Contact Lenses are indicated for daily wear for the correction of refractive ametropia (myopia and hyperopia) in aphakic and/or non-aphakic persons with non-diseased eyes, that exhibit astigmatism of 2.00 diopters or less and can obtain satisfactory visual acuity, in a power range of –9.00 to +15.00 diopters. These may also be used for color enhancement of the eye and for ocular masking.
Eye care practitioners may prescribe the lenses for traditional or frequent/planned replacement wear, with cleaning disinfection and scheduled replacement (see WEARING SCHEDULE). The lenses may be disinfected using either a heat or chemical disinfection system.
Extended Wear
The Bausch & Lomb
®
SOFLENS®(polymacon) O3 and O4 Contact Lenses are indicated for extended wear from 1 to 7 days between removals for cleaning and disinfection or replacement as recommended by the eye care practitioner. The lenses are indicated for the correction of visual acuity of myopic and hyperopic, phakic patients with non­diseased eyes, that exhibit astigmatism of 2.00 diopters or less and can obtain satisfactory visual acuity in a power range of –9.00 to +4.00 diopters.
Eye care practitioners may prescribe the lens for traditional or frequent/planned replacement wear, with cleaning disinfection and scheduled replacement (see WEARING SCHEDULE). The lenses may be disinfected using either a heat or chemical disinfection system.
CONTRAINDICATIONS (REASONS NOT TO USE):
DO NOT USE the BAUSCH & LOMB
®
SOFLENS
®
(polymacon) Contact Lens when any of the following conditions exist:
• Acute and subacute inflammation or infection of the
anterior chamber of the eye
• Any eye disease, injury, or abnormality that affects the
cornea, conjunctiva, or eyelids
• Severe insufficiency of lacrimal secretion (dry eyes)
• Corneal hypoesthesia (reduced corneal sensitivity), if
non-aphakic
• Any systemic disease that may affect the eye or be
exaggerated by wearing contact lenses
• Allergic reactions of ocular surfaces or adnexa (surrounding tissue) that may be induced or exaggerated by wearing contact lenses or use of contact lens solutions
• Allergy to any ingredient, such as mercury or
Thimerosal, in a solution which is to be used to care for the BAUSCH & LOMB® SOFLENS® (polymacon) Contact Lens
• Any active corneal infection (bacterial, fungal, or viral)
• If eyes become red or irritated
WARNINGS
Patients should be advised of the following warnings pertaining to contact lens wear:
• Problems with contact lenses and lens care products could result in serious injury to the eye. It is essential that patients follow their eye care practitioner’s direction and all labeling instructions for proper use of lenses and lens care products, including the lens case. Eye problems, including corneal ulcers, can develop rapidly and lead to loss of vision.
• Daily wear lenses are not indicated for overnight wear, and patients should be instructed not to wear these lenses while sleeping. Clinical studies have shown that the risk of serious adverse reactions is increased when contact lenses are worn overnight.
• Studies have shown that contact lens wearers who are smokers have a higher incidence of adverse reactions than nonsmokers.
• NaturalTint
®
Contact Lenses reduce the amount of light entering the eye and should not be used under reduced illumination conditions such as night driving.
• As with all soft bifocal lenses, Occasions™ Multifocal and P.A.1 Bifocal contact lenses may require a number of fitting procedures before a final lens selection is made. As a patient’s add requirement increases, the probability of the patient achieving good visual acuity decreases. A realistic visual expectation for the average patient is that distance VA will be comparable to spectacles; near VA probably slightly less.
EXTENDED WEAR
• The risk of ulcerative keratitis has been shown to be greater among users of extended wear contact lenses than among users of daily wear contact lenses. The risk among extended wear lens users increases with the number of consecutive days that the lenses are worn between removals, beginning with the first overnight use. Some researchers believe that these complications are caused by one or more of the following: a weakening of the cornea’s resistance to infections, particularly during a closed-eye condition, as a result of hypoxia; an
eye environment which is somewhat more conducive to the growth of bacteria and other microorganisms, particularly when a regular periodic lens removal and disinfecting or disposal schedule has not been adhered to by the patient; improper lens disinfection or cleaning by the patient; contamination of lens care products; poor personal hygiene by the patient; patient unsuitability to
the particular lens or wearing schedule; accumulation of lens deposits; damage to the lens; improper fitting; length of wearing time; and the presence of ocular debris or environmental contaminants. While the great majority of patients successfully wear contact lenses, extended wear of lenses also is reported to be associated with a higher incidence and degree of epithelial microcysts and infiltrates, and epithelial polymegathism, which require consideration of discontinuation or restriction of extended wear. The epithelial conditions are reversible upon discontinuation of extended wear.
The reversibility of endothelial effects of contact lens wear has not been conclusively established. As a result, practitioners’ views of extended wearing times vary from not prescribing extended wear at all to prescribing flexible wearing times from occasional overnight wear to prescribing extended wearing periods from 1 to 7 days with specified intervals of no lens wear for certain patients, with follow-up visits, and with a proper care regimen. Some practitioners also recommend frequent replacement of lenses at intervals such as one to two weeks. Other practitioners may prescribe disposable contact lens wear where lenses are disposed of at each removal.
• If a patient experiences eye discomfort, excessive tearing, vision changes, or redness of the eye, the patient should be instructed to immediately remove lenses and promptly contact his or her eye care practitioner.
PRECAUTIONS
Special Precautions for Eye Care Practitioners:
• Due to the small number of patients enrolled in clinical investigation of lenses, all refractive powers, design configurations, or lens parameters available in the lens material are not evaluated in significant numbers. Consequently, when selecting an appropriate lens design and parameters, the eye care practitioner should consider all characteristics of the lens that can affect lens performance and ocular health, including oxygen permeability, wettability, central and peripheral thickness, and optic zone diameter.
The potential impact of these factors on the patient’s ocular health should be carefully weighed against the patient’s need for refractive correction; therefore, the continuing ocular health of the patient and lens performance on the eye should be carefully monitored by the prescribing eye care practitioner.
• Patients who wear aspheric contact lenses to correct presbyopia may not achieve the best corrected visual acuity for either far or near vision. Visual requirements vary with the individual and should be considered when selecting the most appropriate type of lens for each patient.
• Fluorescein should not be used while the patient is wearing the lenses, because the lenses will become discolored. Whenever fluorescein is used, flush the eyes with sterile saline solution. Wait at least 5 minutes
before reinserting the lenses. If it is not possible to flush the eyes, wait a minimum of 1 hour before reinserting the lenses. If replaced too soon, the lenses may absorb residual fluorescein.
• Before leaving the eye care practitioner’s office, the patient should be able to promptly remove lenses or should have someone else available who can remove the lenses for him or her.
• Eye care practitioners should instruct the patient to remove the lenses immediately if the eye becomes red or irritated.
• Aphakic patients should not be fitted with SOFLENS
®
(polymacon) Contact Lenses until the determination is made that the eye has healed completely.
Eye care practitioners should carefully instruct patients about the following care regimen and safety precautions:
• Different solutions cannot always be used together, and
not all solutions are safe for use with all lenses. Use only recommended solutions.
– Never use solutions recommended for conventional
hard contact lenses only.
– Chemical disinfection solutions should not be used
with heat unless specifically indicated on product
labeling for use in both heat and chemical disinfection. – Always use fresh unexpired lens care solutions. – Always follow directions in the package inserts for the
use of contact lens solutions. – Sterile unpreserved solutions, when used, should be
discarded after the time specified in the labeling
directions.
– Do not use saliva or anything other than the
recommended solutions for lubricating or wetting lenses.
– Always keep the lenses completely immersed in the
recommended storage solution when the lenses are
not being worn. Prolonged periods of drying can
damage lenses. Follow the lens care directions for Care for a Dried Out (Dehydrated) Lens if lens surface does become dried out.
• If the lens sticks (stops moving) on the eye, follow the recommended directions on Care for a Sticking Lens. The lens should move freely on the eye for the continued health of the eye. If nonmovement of the lens continues, the patient should be instructed to immediately consult his or her eye care practitioner.
• 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. Water­base cosmetics are less likely to damage lenses than oil­base products.
• Do not touch contact lenses with the fingers or hands if the hands are not free of foreign materials, as microscopic scratches of the lenses may occur, causing distorted vision and/or injury to the eye.
• Carefully follow the handling, insertion, removal, cleaning, disinfecting, storing and wearing instructions
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