Methods for the production of tinted contact lenses

Details Methods for the production of tinted contact lenses Methods for the production of tinted contact lenses

2005-02-08

2005-02-08

Vargot, Mathieu D. (Department: 1732)

Plastic and nonmetallic article shaping or treating: processes

Optical article shaping or treating

Utilizing plasma, electric, electromagnetic, particulate, or...

C264S001700, C264S492000

Reexamination Certificate

active

06852254

ABSTRACT:
The invention provides a method for producing tinted contact lenses in which diffusion of monomer into the colorant is aided by heating of the molds. The invention provides a method, and lenses produced by that method, that reduces the residual, unbound polymer on the lens surface and lens surface roughness.

REFERENCES:
patent: 4640805 (1987-02-01), Neefe
patent: 5034166 (1991-07-01), Rawlings et al.
patent: 8068797 (2000-05-01), Hunt
patent: 6284161 (2001-09-01), Thakrar et al.
patent: 0 983 837 (2000-03-01), None
patent: WO 9634735 (1996-11-01), None
PCT International Search Report, dated Nov. 13, 2003, for PCT Int'l. Appln. No. PCT/US03/18797.

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