Abstract: Submit Manuscript | http://medcraveonline.com Adv Ophthalmol Vis Syst 2015, 2(4): 00054 must give brief anatomy of the retina and choroid. The retina composed of two parts: neurosensory retina which composed of 9 layers the internal limiting membrane, the nerve fiber layer, the ganglion cell layer, the inner plexiform layer, the inner nuclear layer, the outer plexiform layer, the outer nuclear layer, the rod and cone inner and outer segments, the external limiting membrane (Figure 1).