Patent ID: 8252368

Claim:
A method for trimming an ophthalmic glass to conform the ophthalmic glass to dimensions for an ophthalmic glass frame, comprising: (a) contacting the ophthalmic glass with an adhesive holding pad associated with an ophthalmic glass trimming device, wherein the ophthalmic glass comprises a substrate coated with a hydrophobic or hydrophobic/oil repellent coating, wherein the hydrophobic or hydrophobic/oil repellent coating has an initial surface energy lower than or equal to 14 mJ/m 2 and provides insufficient adhesion between the adhesive holding pad and the ophthalmic glass thus rendering the ophthalmic glass inappropriate for trimming, wherein on the coated substrate is a temporary layer, the temporary layer imparting to the ophthalmic glass a surface energy of at least 15 mJ/m 2 allowing sufficient adhesion between the adhesive holding pad and the ophthalmic glass during trimming to render the ophthalmic glass appropriate for trimming; and (b) trimming the ophthalmic glass to conform the ophthalmic glass to dimensions for an ophthalmic glass frame.