Korea Bigeyes is a website that sells circle contact lenses designed to cover not just the iris but also part of the white of the eye in order to make the eye look bigger. The New York Times points out that these contact lenses are illegal in the United States because they are sold without a prescription.
Circle contact lenses are used primarily in East Asian countries, especially Hong Kong, Japan, Singapore and South Korea. Circle lenses began to be popular in the United States in 2010, getting a boost of popularity after pop singer Lady Gaga portrayed the look in the video for her song "Bad Romance." The lenses are often sold in unusual shades, such as pink or violet, and can be prescription strength or just cosmetic.
As of 2014, circle lenses can only be purchased online. Because they do not require a prescription, buyers can choose their own prescriptions as well as colors. Spokesmen for the U.S. Food and Drug Administration and the American Optometric Association have expressed concern regarding potential eye damage that can result from buying contacts without the involvement of an eye professional. Contacts bought in this way can deprive the eye of oxygen, cause eye injuries and serious vision problems, and can even result in blindness.