Bausch & Lomb "O" lenses for extended wear.
D003263:Contact Lenses, Hydrophilic / Q000009:adverse effects; D003315:Cornea / Q000473:pathology; D003316:Corneal Diseases / Q000209:etiology; D004487:Edema / Q000209:etiology; D006801:Humans; D013997:Time Factors