COLOURED CONTACT LENS

The present disclosure provides a contact lens comprising a first colourant which is a blue-blocking colourant having an absorption maximum (?max) in the range of from 415 nm to 455 nm and a second colourant, wherein the second colourant is a polymerizable dye having an absorption maximum (?max) in...

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Bibliographic Details
Main Authors BROAD, Robert Andrew, LIU, Yuwen, MITCHELL, William
Format Patent
LanguageEnglish
Published 19.06.2023
Subjects
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
OPTICS
PHYSICS
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Summary:The present disclosure provides a contact lens comprising a first colourant which is a blue-blocking colourant having an absorption maximum (?max) in the range of from 415 nm to 455 nm and a second colourant, wherein the second colourant is a polymerizable dye having an absorption maximum (?max) in the range of from 470 nm to 600 nm, and optionally also comprising a third colourant which is a colourant having an absorption maximum in the range of from greater than 600 nm to 800 nm. A method of making the lens is also provided. (Figure 2)
Bibliography:Application Number: MY2023PI00296