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US 9,844,465 B2Granted
Second pass femtosecond laser for incomplete laser full or partial thickness corneal incisions
AssigneeLensar, Inc.
InventorsE. Valaski Teuma, Gary Gray
Life of this patent
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Abstract
A method for forming an incision in an eye, the method including performing a first pass of a first laser beam along a path within an eye, wherein after completion of the first pass there exists a residual uncut layer at an anterior surface of a cornea of the eye. The method further including performing a second pass of a second laser beam only along a portion of the path that contains the residual uncut layer, wherein after completion of the second pass, the residual uncut layer is transformed into a full complete through surface incision.
Claims14
A method for forming an incision within an eye, the method comprising:
- determining a path extending from a location below a surface of a cornea of the eye to location above the anterior surface of the cornea;
- performing a first pass of a first laser beam along a first portion of the path within the cornea, the pass starting from a point within the cornea and moving toward the anterior surface of the cornea;
- thereby forming an incision within the cornea;
- wherein after completion of the first pass there exists a residual uncut layer at the anterior surface of the cornea;
- performing a second pass of a second laser beam along a second portion of the path;
- the first and second portions of the path at least partially overlapping;
- wherein the second portion of the path contains the residual uncut layer, wherein after completion of said second pass, the residual uncut layer is transformed into a full complete through surface incision.
4 more elements
Dependencies are inferred from the claim text.