Amsler Chart Self Check 563058648

Tags: health pattern change medical line square dot backdrop eye pressure simple disease grid check checkup normal description seeing distortion confirmation disorder ocular grating ophthalmology symptoms degeneration glaucoma line drawing medical illustration optic nerve vision loss eye disease visual field self check Age related Macular Degeneration intraocular pressure Optic neuritis Diabetic Macular Edema visual field defect blindness risk visual field stenosis retinal vein obstruction severe myopia macular disease amsler chart retinal disease self confirmation central darkening