Ultraviolet absorbing hydrophilic corneal contact lenses

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Polymers from only ethylenic monomers or processes of...

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264 11, 351160H, 523106, 524558, 526316, C02C 704, C08F 1224, C08F 1612, C08F21612

Patent

active

RE0334774

ABSTRACT:
This invention relates to ultraviolet absorbing lenses, particularly corneal contact lenses, comprising a polymeric shaped body having an ultraviolet absorber dispersed substantially uniformly throughout said body and being in a steady state with respect to extraction thereof from said body by an aqueous medium, and to the method of making such lenses.

REFERENCES:
patent: 3171869 (1965-03-01), Weinberg
patent: 3173893 (1965-03-01), Fertig et al.
patent: 4304895 (1981-12-01), Loshaek
patent: 4390676 (1983-06-01), Loshaek
UVC Brochure (Guaranteed Plastic Lenses), undated document.
Fertig Article (Journal of Applied Polymer Science), vol. 10, pp. 663-672.

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