To discuss:
The secretion, flow, and reabsorption of aqueous humor.
Introduction:
The optical components present in the eye include the cornea, lens, aqueous humor, and vitreous body. These components are transparent elements involved in admitting the light rays, refracting the rays, and focusing the images in the retina of the eye. The retina, the neural component, is one of the principle components of the eyeball.
The eyeball consists of three cell layers (tunics) namely tunica fibrosa, tunica vasculosa, and tunica interna. The tunica vasculosa is the middle layer of the eyeball. This layer comprises three regions namely iris, ciliary body, and the choroid. The choroid is the pigmented, highly vascular layer present behind the retina. The oxygen supply to the retina is obtained from the choroid. Thus, the retina if separated from the choroid for a long time results in blindness. The ciliary body is an extension (thickened) from the choroid, which forms a ring (muscular) encircling the lens present in the eye.
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Anatomy and Physiology
- Understanding Health Insurance: A Guide to Billin...Health & NutritionISBN:9781337679480Author:GREENPublisher:Cengage