Contact lenses of hydrophilic polymers made by photopolymerizati

Details Contact lenses of hydrophilic polymers made by photopolymerizati Contact lenses of hydrophilic polymers made by photopolymerizati

1976-10-22

1978-02-14

Turer, Richard B.

Optics: eye examining, vision testing and correcting

Spectacles and eyeglasses

Ophthalmic lenses or blanks

20415922, 20415923, 20415924, 260885, 264 1, 264 22, G02C 704

Patent

active

040735770

ABSTRACT:
A contact lens is made from a polymer hydrogel by photopolymerizing a hydroxyalkyl acrylate or methacrylate in the absence of a cross-linking agent. The polymer hydrogel can also be formed by photopolymerization carried out in the presence of a catalyst responsive to short-wave light. Heat can also be used in combination with the photopolymerization to assist in formation of the polymer hydrogel contact lens.

REFERENCES:
patent: 3515656 (1970-06-01), Huang et al.
patent: 3647736 (1972-03-01), Ewell
patent: 3792028 (1974-02-01), Seiderman
patent: 3816571 (1974-06-01), O'Driscoll et al.
patent: 3822196 (1974-07-01), O'Driscoll et al.

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