Patent ID: 6183083
Filing Date: 2001-02-06
Classification: G02C

Abstract:
A colored contact lens comprising:(a) a pattern of modifying color elements on a surface of the lens over a region of the lens that substantially covers the iris;(b) a UV absorbing compound present in an amount at least about 0.9 wt % dry basis that would be sufficient to cause a noticeable yellow tint in a conventional clear contact lens; and(c) an amount of violet colorant between 0.0001 wt % and 0.01 wt % dry basis sufficient to mask the yellow tint, but less than an amount of violet colorant necessary to interfere with the modifying color and cause a darker appearance to the lens conventionally associated with violet colorants, whereby the modified color of the wearer's eye as observed by an ordinary wearer is cosmetically indistinguishable from a similar lens not having the UV absorbing compound and violet colorant.