Normal eye anatomy is illustread by a sagittal section of the eyeball ,and close ups of the retina and optic disc .the eye chart illustrates for the conditions and eye problems. 1.Cataracts. 2.corneal ulcers. 3.retinal tear and detachment. 4.vitreous floaters 5.glaucoma melanoma. 6.diabetic retinopathy 7 macular degeneration 8.Blepharitis. 9 .conjunctivitis . 10.Exotropia 11.Exotropia