Alcon Inc.
Method for making silicone hydrogel contact lenses

Last updated:

Abstract:

The present invention generally relates to a method for producing silicone hydrogel contact lenses having less optical defects or free of optical defects by subjecting the extraction tray for the formed silicone hydrogel contact lenses to a reciprocating lowering and raising motion thereof to obtain the silicone hydrogel contact lenses.

Status:
Grant
Type:

Utility

Filling date:

10 Dec 2019

Issue date:

6 Sep 2022