Contact lenses, or simply contacts, are thin lenses placed directly on the surface of the eyes. Contact lenses are ocular prosthetic devices used by over 150 million people worldwide in 2012, and they can be worn to correct vision or for cosmetic or therapeutic reasons.
Contact lenses, or simply contacts, are thin lenses placed directly on the surface of the eyes. Contact lenses are ocular prosthetic devices used by over 150 million people worldwide in 2012, and they can be worn to correct vision or for cosmetic or therapeutic reasons.
Source: Wikipedia "Contact lens" · CC BY-SA 4.0
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