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Article: Expanded range, tints offered for progressive lenses
- Article from:
- Ophthalmology Times
- Article date:
- September 15, 2004
- Author:
CopyrightCopyright Advanstar Communications, Inc. Sep 15, 2004. Provided by ProQuest LLC. (Hide copyright information)
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Broadens appeal
Roanoke, VA-The Spectacle Lens Group of Johnson & Johnson Vision Care Inc. is expanding its prescription range for the polycarbonate version of its Definity progressive lenses, and new tinted options.
The polycarbonate lenses now are offered in +4 to -7 D in sphere range, and -0.25 to -4 D in cylinder range. They also now feature an add range of +1 to +3 D, prescribed prism range of up to +6 D, and lens diameter of 78 mm.
The Definity lenses feature "dual add" technology in which the prescription is divided over the front and back surface of the lens to reduce astigmatism and a smooth transition between distances.
In addition to the broader range, the lenses now feature ...