replacement of the crystalline lens in cataract

abnormality anatomy blind blindness care cataract cornea crystalline defect detachment disorder eye eyeball eyesight glaucoma health human intraocular iris laser lens loss medical medicine microsurgery nerve nervous ocular oculist ophthalmic ophthalmologist ophthalmology optic optical optician optometrist optometry orb pathology pupil removal science sclera sensory sight specialist surgery view vision vitreous