Elaborate the internal vascular circulation of an eye, Biology

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Elaborate the internal vascular circulation of an eye.

Retinal vessels are derived from central retinal artery and are distributed within the inner two-third of retina. Outer one-third is supplied by choroidal circulation. The macula is entirely devoid of blood vessels. The retinal artery divides into arterioles; these arterioles are surrounded by capillary free zone.

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