The part of the retina at the optic disc away from the area to the point that is called Temporal images (Macula) is approximately 5-6 mm, this area will have a yellow substance (Xanthophyl) causes a yellow color density in the heart of the Macula is the best Roy bum/concave called Fovea, which is the most important section in the visible. There are no blood vessels feed.
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