Composition for preventing clouding of paosterior capsule after extracapsular cataract eye surgery and method of performing cataract surgery
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United States of America Patent
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Dec 28, 1993
Issued Date -
N/A
app pub date -
Oct 9, 1991
filing date -
Mar 25, 1988
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The present invention relates to compositions for killing undifferentiated epithelial cells during cataract surgery on an eye to prevent posterior capsule clouding after the surgery and to a method for performing cataract surgery on an eye including injecting a cell-killing substance between the anterior capsule and the natural lens prior to removing the natural lens from the eye. The cell-killing substance is preferably an acid or base adjusted aqueous solution having a pH in the range between about 1.0 to below 6.5 or about above 7.5 to 14.0; or a hypotonic solution having a salinity less than 0.9% or a pH adjusted hypotonic solution having a salinity less than 0.9% and a pH either below 6.5 or above 7.5. The compositions of the present invention also incorporates a viscoelastic material, a dye or a mixture thereof, in combination with the cell-killing substance.
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