Patent ID: 6939486
Filing Date: 2005-09-06
Classification: B29C,B29D,B29L,Y10S

Abstract:
1. A method for molding a single-piece IOL having an optic and first and second haptics connected to said optic, said method comprising the steps of: providing a mold having first and second mold halves, each of said mold halves having an optic forming surface and first and second haptic forming surfaces, the optic forming surfaces and the first and second haptic forming surfaces together forming a mold cavity in a shape of said IOL when said mold halves are assembled together, said first and second haptic forming surfaces each connected to said optic forming surface, said haptic forming surfaces of the mold halves further defining looped haptics when the mold halves are assembled together; providing an injection port connected to said first haptic forming surfaces when said mold halves are assembled together; providing a venting port connected to said second haptic forming surfaces when said mold halves are assembled together; assembling said first and second mold halves together while aligning said optic forming surfaces and said first and second haptic forming surfaces on each of said first and second mold halves, respectively, and thereby forming said mold cavity; injecting a quantity of polymerizable material through said injection port into said mold cavity with air simultaneously escaping from said mold cavity through said venting port; curing said polymerizable material to form said IOL; and separating said mold halves and releasing said IOL therefrom.