Intracorneal lens
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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N/A
Issued Date -
Aug 30, 2001
app pub date -
Mar 2, 2001
filing date -
Aug 7, 1997
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A diffractive optical ICL made from two different hydrogel materials that are biologically acceptable for long term implantation in the cornea. The first material has a higher refractive index than the cornea and it is bound to the second material which has a refractive index similar to corneal tissue. The interface between the two materials consists of a microstructured diffractive surface. The adequate permeability of metabolites through both of the hydrogels of the diffractive ICL yields a safe implant for the cornea. Alternatively, the lens may be made of a single material and/or have an edge geometry that minimizes corneal irritation and allows the lens to sit within the corneal tissue smoothly and relatively flat.
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