PureVision Multi-Focal

PureVision MultiFocalPureVision Multi-Focal contact lenses from Bausch and Lomb are bifocal lenses to be worn as daily lenses for up to a month and discarded.  The PureVision Multi-Focal lens is the only multi-focal contact lens on the market that can be worn as either a daily lens or as an extended wear lens.  Your eye care provider will inform you if you are able to wear these lenses for extended periods of time.  The PureVision Multi-focal lens has an improved optical design and surface properties to give you clear, crisp vision and healthy, comfortable eyes.

Lens Material
The lens material, balafilcon A, is a copolymer of a silicone vinyl carbamate, N-vinyl-pyrrolidone, a siloxane crosslinker and a vinyl alanine wetting monomer.

Lens Parameters
Base Curve: 8.6mm
Diameter: 14.0mm
Sphere Powers: +6.00D to -10.00D (0.25D increments)
ADD Powers: Low (+0.75D to +1.50D) and High (+1.75D to +2.50D)
Center Thickness: 0.09mm at -3.00D (varies with power)


Lens Properties
Specific Gravity: 1.064
Refractive Index: 1.426
Light Transmittance: C.I.E. value – at least 95%
Water Content: 36%

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