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US 6,720,314 B1Granted
Use of a vital dye for facilitating surgical procedures for cataract extraction
OwnerGerrit Reinold J. Mellesinventor
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Abstract
Methods for performing a capsulorhexis are disclosed wherein a dye is used to stain a lens capsule of an eye. The dye is capable of staining tissue without diffusing through the tissue. Compositions including dyes that are useful in the methods are also disclosed.
Claims8
A method for performing a capsulorhexis, comprising the steps of:
- surgically opening an eye;
- aspirating an ocular fluid from the eye;
- filling an anterior chamber of the eye with air;
- applying trypan blue onto an outer surface of a lens capsule;
- producing a selectively stained lens capsule without substantially staining intraocular structures compared to the stained lens capsule;
- visually distinguishing the selectively stained lens capsule from underlying lenticular material while surgically opening the lens capsule;
- and
- surgically removing lens substance.
5 more elements
Dependencies are inferred from the claim text.