Ophthalmic Lens Molds With Low Levels Of UV Light Transmittance, Ophthalmic Lenses Molded Therein, And Related Methods

A method of manufacturing a silicone hydrogel contact lens body, comprising:

• providing a first mold member and a second mold member, the first mold member comprising a concave molding surface configured to mold an anterior surface of a contact lens and the second mold member comprising a convex molding surface configured to mold a posterior surface of a contact lens, the molding surface of at least one of the first mold member and the second mold member comprising at least one thermoplastic polymer having a level of UV transmittance of from 0.01% to 3.00%, the first mold member and the second mold member being configured to form a lens-shaped cavity therebetween when combined as a mold assembly;
• placing a polymerizable composition comprising a) at least one silicon-containing monomer, silicon-containing macromer, silicon-containing prepolymer, or any combination thereof, and b) at least one hydrophilic monomer in the first mold member;
• assembling the mold assembly by placing the second mold member in contact with the first mold member so as to form a lens-shaped cavity therebetween with the polymerizable composition contained in the lens-shaped cavity of the mold assembly;
• and
• directing UV light through the mold assembly into the lens-shaped cavity to cure the polymerizable composition in the mold assembly, forming a cast-molded polymerized reaction product in the lens-shaped cavity of the mold assembly, the polymerized reaction product comprising a silicone hydrogel contact lens body.