Hybrid contact lens system and method

Details Hybrid contact lens system and method Hybrid contact lens system and method

2008-01-29

2008-01-29

Stultz, Jessica T (Department: 2873)

Optics: eye examining, vision testing and correcting

Spectacles and eyeglasses

Ophthalmic lenses or blanks

C351S16000R, C351S172000

Reexamination Certificate

active

07322694

ABSTRACT:
A hybrid contact lens comprises a central zone comprising a substantially rigid, gas permeable material having a DK of at least 30, a relatively soft peripheral zone and an intermediate zone comprising a film or coating that is created around the central zone, and then cured. The film facilitates chemical bonding between the central zone and the peripheral zone, and also provides a protective barrier to prevent modification of the physical characteristics of the central zone. The film may be created by soaking the central zone in a chemical solution for a predetermined amount of soaking time.

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Search Report in related European Application No. EP 03 79 4619, mailed Oct. 14, 2005.

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