What is "circle contact lens"

n. A cosmetic contact lens that makes the eye's iris appear larger, originally invented in Korea.

A circle contact lens, also known as a big eye contact lens and circle lens, is a cosmetic (non-corrective and decorative) contact lens that makes the eye's iris appear larger. It has become a trend throughout East, South and Southeast Asia and is largely produced in Japan, South Korea and China. Some circle lenses are made in toric prescriptions to correct astigmatism and are available from several online retailers.