Patent ID: 8540907

Claim:
A method of producing an ophthalmic lens mold, comprising: directing a thermoplastic material into a mold cavity to form a molded ophthalmic lens mold, the mold cavity comprising an optic power insert located in an optic power insert bushing, the optic power insert having an external surface, the bushing comprising a first end, a second end, a length extending from the first end to the second end, and a bore surrounded by an interior sidewall surface and structured to accommodate, at least in part, the exterior surface of the optic power insert, the optic power insert and the bushing having a venting system located between the exterior surface of the optic power insert and the interior sidewall surface of the bushing, the venting system comprising a plurality of channels for directing gas out of the mold cavity from the first end of the bushing toward the second end of the bushing.