Patent ID: 7931369
Filing Date: 2011-04-26
Classification: B29D,G02C,Y10T

Abstract:
1. An ophthalmic lens used to correct color blindness or dyslexia in a wearer, comprising: (a) an opthalmic base formed of material of wide molecular spacing, wherein said ophthalmic base includes a front surface and a rear surface each located adjacent to first regions, said first regions are spaced between second regions and said front surface and said rear surface; (b) a color tint dye dispersed within said ophthalmic base, wherein said color tint dye is concentrated predominantly in at least one of said second regions forming a color tinted base; and (c) a penetrable neutral tint dye dispersed within said color tinted base, wherein said neutral tint dye is concentrated predominantly in at least one of said first regions such that a ratio of a concentration of said neutral tint dye to a concentration of said color tint dye is higher in said first regions than in said second regions and a ratio of a concentration of said color tint dye to a concentration of said neutral tint dye is higher in said second regions than in said first regions, said neutral tint dye operative to cause said color tinted base to appear to be a neutral tint to an outward observer, wherein said ophthalmic base, said color tint dye, and said neutral tint dye are integrally formed.