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US 6,729,939 B2Granted
Polishing method for intraocular lens
AssigneeBausch & Lomb Incorporated
InventorRichard J. Wrue
Life of this patent
Estimating the term…
Abstract
A method for removable attachment of a mask to an IOL to protect a sharp peripheral edge of the IOL optic during polishing.
Claims2
A method of polishing an intraocular lens having an optic having a sharp peripheral edge and one or more haptics extending from the optic, said method comprising the steps of:
- a) providing an elastomeric mask having an internal annular groove and a throughhole for each of said haptics;
- b) positioning said optic sharp peripheral edge in said internal annular groove with each said haptic extending through a respective said throughhole;
- c) subjecting said intraocular lens to a polishing operation whereby said sharp peripheral edge is protected by said mask;
- and
- d) removing said intraocular lens from said mask.
2 more elements
Dependencies are inferred from the claim text.