Direct view gonio lens

Optics: eye examining – vision testing and correcting – Spectacles and eyeglasses – Ophthalmic lenses or blanks

Reexamination Certificate

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C351S219000, C351S16000R

Reexamination Certificate

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07419262

ABSTRACT:
A lens for viewing the anterior chamber of the eye includes a contact lens having a contact lens surface and an anterior surface. The anterior surface has an optical axis that intersects the optical axis of the contact lens surface. First and second mirror surfaces are positioned to redirect light rays from the periphery of the anterior chamber and reflect them in a direction parallel or nearly parallel to the optical axis of the contact lens surface.

REFERENCES:
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patent: 7125119 (2006-10-01), Farberov
patent: 2006/0050229 (2006-03-01), Farberov
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patent: 97/13453 (1997-04-01), None
patent: 01/95842 (2001-12-01), None
Direct View Gonio Lens,Ocular Instruments, Inc. Catalog, 1987, 2 pages.
Iwasaki, N., et al., “The Double-Mirror Gonioscopic Lens for Surgery of the Anterior Chamber Angle,”Arch. Ophthalmol. 115:1333-1335, Oct. 1997.
Osher Surgical Viewing Kit, 1-page product brochure.

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