Scratch-resistance Coating

Scratch-resistance Coating Specialized coating for plastic lenses that helps retard scratching or crazing of lenses. Extremely beneficial in most cases for long term preservation of quality vision through your lenses. In the last several years, we’ve seen a...

Transitional Lenses

Transitional Lenses Lenses that turn dark outdoors and lighten up indoors. Activation is induced by a chemical reaction to ultraviolet (UV) sunlight. Generally, they do not get as dark as sunglasses and will not darken in the car since most car windows block out UV...

UV Tint

UV Tint Not really a “tint”, but a clear chemical coating used to filter out ultraviolet light. More than a dozen studies have shown that chonic exposure to sunlight without proper protection can increase the chances of developing age-related eye diseases...

Vertex Distance

Vertex Distance The distance between a corrective lens and the cornea. An important measurement with moderate to high refractive errors since the final power of a glasses lens or contact lens will depend upon its distance from the retina.