A circle contact lens, also known as a big eye contact lens, is a special contact lens that makes the eye's iris appear larger; this product was originally invented in South Korea. Such contact lenses are generally used among females and sometimes males to give a more beautiful appearance to the eyes.
Circle contact lenses were originally used solely by Korean celebrities before sold as a product available to the general population in East Asian nations. Currently this product is not yet sold in store shelves in western nations and can only be purchased online.
Circle Lenses versus conventional cosmetic contact lenses: 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.