Ophthalmic devices having a highly selective violet light transmissive filter and related methods

Ophthalmic devices are provided having a violet-light vertical cut-off filter abruptly absorbs light between the wave lengths of between approximately and 400 nm and 450 nm such that a curve when plotted as percent transmission versus wavelength has the shape as depicted in FIG. . In one embodiment...

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Bibliographic Details
Main Authors Mainster, Martin A, Lang, Alan J, Lowery, Michael D, Pearson, Jason Clay, Weaver, Max Allen, Fleischer, Jean Carroll, King, Gregory Alan
Format Patent
LanguageEnglish
Published 09.10.2007
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Summary:Ophthalmic devices are provided having a violet-light vertical cut-off filter abruptly absorbs light between the wave lengths of between approximately and 400 nm and 450 nm such that a curve when plotted as percent transmission versus wavelength has the shape as depicted in FIG. . In one embodiment the ophthalmic devices are made from acrylates and the light absorbing compound is an Eastman Yellow 035 MA dye.