Keratoconus Degenerate Shape Human 735867062

Tags: shape human health healthy medical blur structure eye visual disease lens aging dry cloudy vision nuclear organ optic glare membrane anatomy normal diagram surgery pupil blurry ophthalmologist defect disorder ocular ophthalmology eyeball cornea swelling crystalline cataract opacity retina nerve astigmatism posterior degenerative blindness anterior epithelium intraocular keratoconus pathologic