Method and apparatus for forming a lens

Abstract

Exemplary embodiments of the present disclosure provide a method and apparatus for forming an ophthalmic lens. An exemplary method includes providing a plurality of posterior tools each having a posterior optic defining surface and a plurality of anterior tools each having an anterior optic defining surface, wherein each one of the plurality of posterior tools has a different central posterior optic defining surface including a unique conic section. The method further includes selecting one of the plurality of posterior tools and one of the plurality of anterior tools based on a criteria, and forming a posterior mold by the selected one of the plurality of posterior tools and an anterior mold by the selected one of the plurality of anterior tools, the posterior mold and the anterior mold operable to form an ophthalmic lens having the criteria.

1 - 7 . (canceled) 
     
     
         8 . An apparatus for forming an ophthalmic lens, comprising:
 (a) a plurality of posterior tools having a posterior optic defining surface, wherein each one of the plurality of posterior tools has a different central posterior lens-molding surface including a unique conic section and is operable to form a posterior mold, and wherein each one of the plurality of posterior tools is operable to form a posterior mold;   (b) a plurality of anterior tools having an anterior optic defining surface, wherein each one of the plurality of anterior tools is operable to form an anterior mold, and wherein each one of the plurality of posterior tools is operable to form an anterior mold; and   (c) a forming element that mates a selected posterior mold with a selected anterior mold to produce an ophthalmic lens having a criteria.   
     
     
         9 . The apparatus according to  claim 8 , wherein the ophthalmic lens has a unique spherical power correction. 
     
     
         10 . The apparatus according to  claim 9 , wherein the ophthalmic lens with a unique spherical power correction has a consistent spherical aberration value. 
     
     
         11 . The apparatus according to  claim 10 , wherein the spherical aberration value is within a range of about 0.1 to about 0.2 μm. 
     
     
         12 . (canceled) 
     
     
         13 . A series of posterior took having a posterior optic defining surface and a series of anterior tools having an anterior optic defining surface, wherein each one of the posterior tools has a different central posterior optic defining surface including a unique conic section;
 wherein a posterior tool is matable with a plurality of said anterior tools to form a posterior molds and anterior molds operable to mold ophthalmic lenses having different spherical power corrections but a consistent spherical aberration value.   
     
     
         14 . The series of  claim 13 , wherein said spherical aberration value is within a range of about 0.1 to about 0.2 μm. 
     
     
         15 . The series according to  claim 13 , wherein either the posterior lens-molding surface or the anterior lens-molding surface is toric shaped to provide a cylindrical correction.