PROCESS AND APPARATUS FOR THE MANUFACTURE OF A CONTACT LENS

摘要

In a process for the manufacture of contact lenses, a polymerisable contact lens material is dispensed into a mould half (1) and the mould is subsequently closed by means of the second mould half (2). The material located between the two mould halves in the moulding cavity (12) is then polymerised, thus forming an as yet unhydrated contact lens (CL). The moulding surface of one of the two mould halves (1,2) is pre-treated, before use, in a region (20) outside the optically active zone of the contact lens (CL) in such a manner that, when the mould is opened, the contact lens (CL) adheres to the pre-treated mould half.