Artificial lenses for the eye.
D000368:Aged; D002387:Cataract Extraction; D002986:Clinical Trials as Topic; D006805:Human Experimentation; D006801:Humans; D007908:Lens, Crystalline / Q000601:surgery*; D007909:Lenses / Q000592:standards; D019736:Prostheses and Implants / Q000592:standards; D014481:United States; D014486:United States Food and Drug Administration