Basic Lens Styles

Single Vision Single vision lenses, as the name suggests, correct a single refractive error with a single focal length. When a myopic or hyperopic refractive error exists, spectacles are required to correct vision. Minus powered single vision lenses are used to...

Focus on Progressive Lenses

It Doesn't Last Forever Eventually it gets everyone. That point in a patient's life comes when no matter how perfect their vision may have been as a young adult, they begin to notice changes. The newspaper becomes more difficult to focus or the fine print on...

Focus on Coatings

Lens Coatings - Advancing the Utility of Spectacle Lenses All optical materials, no matter how advanced or well-suited for a patient's needs, suffer from innate shortcomings specific to the lenses chemical makeup. Where crown glass is unquestionably superior in...

Principles of AR Coatings

How Do AR (Anti-reflective) Coatings Work? The Problem: No Time for Reflection As light passes through a lens from air, it experiences a change in index of refraction. When that occurs, some of the incident light is transmitted through the lens medium and refracted...

Polarized Lenses

Far More than Eliminating Glare Photographers often use polarized lenses on their cameras to obtain bolder colors and deeper contrast in their photos. In the same way polarized lenses remove the glare and improve the visual quality of a photograph, polarized...

Polarized Colors, Efficiency, and Use

Polarized Colors, Efficiency, and Use - Color Polarizing Efficiency Trans-mission Use Gray C 98% 25% Reduces the maximum amount of visible light and allows for true color recognition. Good for bright sunny days and heavy glare situations. Best uses include driving,...
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