Circle contacts have the color covering a majority of the contact, causing the color to go beyond the iris and manipulating the ratio between the iris and the eye, thus, the appearance of a larger iris. It comes in a variety of colors, and effects. The diameter of the lens is on average 14 mm (more than 2 mm longer than the average iris diameter). The lenses themselves range from natural-looking colors to special effects.

The lenses are popular among Asian teenagers and adults. The lenses create an illusion of doe-like, large eyes.Many people consider circle lenses as a fashion accessory rather than medical devices. They are used to create a reminiscient of anime characters. ^[They are also used to create the Ulzzang look, which is characterized by large eyes, small noses and fair skin.

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