Toric contact lenses

Details Toric contact lenses Toric contact lenses

2006-12-21

2009-11-24

Collins, Darryl J (Department: 2873)

Optics: eye examining, vision testing and correcting

Spectacles and eyeglasses

Ophthalmic lenses or blanks

C351S176000

Reexamination Certificate

active

07621635

ABSTRACT:
A set of toric contact lenses, each lens in the set including a posterior surface, an anterior surface, a peripheral zone and a center thickness for each lens. At least one of said surfaces includes a toric optical zone, and each lens in the set having different cylindrical correction. The center thicknesses of the lenses decreasing monotonically with increased cylindrical power.

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International Standard, “ISO 18369-1,” Ophthalmic Optics—Contact Lenses—Part 1, 1 ed., (p. 1-48), (Aug. 15, 2006).
Ames et al., “Factors Influencing Hydrogel Toric Lens Rotation,” ICLC, Jul./Aug. 1989, (vol. 16), (Issue. 7-8), (p. 221-225).

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