Apparatus and method for surgically performing a filtering operation on an eye for glaucoma
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United States of America Patent
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-
May 17, 1994
Grant Date -
N/A
app pub date -
Apr 29, 1991
filing date -
Apr 29, 1991
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The present invention provides an apparatus and method for performing a filtering operation for glaucoma. The apparatus is a jig comprising a base for supporting the jig on the eye. An offset aperture in the base above the cornea allows cutting of a flap in the sclera. An arm is provided for supporting an oscillating blade and fiberoptic laser assembly. The blade and laser are mounted on the arm. The arm is located in the base of the jig in a slot. To cut a flap in the sclera, the oscillating blade and laser assembly is slid along the slot in the jig, thereby creating a proper angle of dissection with the blade. After the flap is elevated, the fiberoptic laser burns a hole through the choroid layer. An egress of fluid through the hole eliminates the excess pressure in the vitreous humor.
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