Contact lens for use with ophthalmic monitoring systems

Details Contact lens for use with ophthalmic monitoring systems Contact lens for use with ophthalmic monitoring systems

1997-06-24

1999-05-11

Sugarman, Scott J.

Optics: eye examining, vision testing and correcting

Spectacles and eyeglasses

Ophthalmic lenses or blanks

351219, G02C7/04

Patent

active

059033339

ABSTRACT:
A contact lens for use with pupil monitoring systems. A contact lens has a first surface that conforms to a cornea and sclera of a patient's eye, and a second surface that has a tubular extension defining a viewing port formed thereon. A distal region of the tubular extension forms an outwardly protruding lip which functions to securely engage the eyelid of a patient during the monitoring process and facilitates manipulation of the sclera contact lens while it is being inserted in or removed from a patient's eye. The lens may conform solely to the cornea of a patient's eye, and the viewing port may have a wide angle lens, polarizing element or other optical filtering element provided therein.

REFERENCES:
patent: 3929124 (1975-12-01), Yablonski et al.
patent: 4007980 (1977-02-01), Bracher et al.
patent: 4966452 (1990-10-01), Shields et al.
patent: 5022749 (1991-06-01), Ogura
patent: 5200773 (1993-04-01), Volk
patent: 5297554 (1994-03-01), Glynn et al.
patent: 5608472 (1997-03-01), Szirth et al.

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