Question

how are lenses prepared?

Answer 1

Explanation:

When the eye's own optical system cannot refract light onto the retina, ophthalmic lenses are needed. The design and production of lenses is a complex art and science. Glass and Plastic-type lenses, with the exception of polycarbonate, are made from a molding process.

Answer 2

Explanation:

When the eye's own optical system cannot refract light onto the retina, ophthalmic lenses are needed. The design and production of lenses is a complex art and science. Glass and Plastic-type lenses, with the exception of polycarbonate, are made from a molding process.