diabetic retinopathy

diabetic retinopathy eye retinal damage cross diabetes closeup macula optic disc choroid retina sclera fovea medical condition illness anatomy structure cataract glaucoma lens ophthalmologist optical disease diagnosis cornea pupil ophthalmology strabismus age physiology macular degeneration arteriovenous chamber ciliary cochlear disorders eyeglasses hyaloid iris vision loss hyperglycemia microaneurysm hemorrhages edema vitreous blindness fundus angiography vitrectomy glycemic