diabetic retinopathy, ophthalmoscopic diagnosis,

diabetic retinopathy ophthalmoscopy spot diabetes mellitus eye blood vessel vessels capillary capillaries damaged diagnosis diagnostic disease macula disorder fundus ocular ophthalmic ophthalmology medical ophthalmoscope proliferative medicine leakage optic disc retinal illustration retina retinoscopy clinical fundoscopy type hand drawn drawing form intraretinal surface exam fundoscopic oedema edema irma fluorescein angiography macular