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What are the four refractory media of the eye in order of refracting light?
Wiki User
∙ 11y ago
The refrective media of eye is composed of four parts of eye, the cornea which is the anterior 1/6 of the external tunic (fibrous tunic) of the eyeball. The aqueous humoris second part of the refractive media of eye, it is a colorless, transparent and watery fluid, it fills the chambers of the eye and is formed by active transport and diffusion from the capillaries of the ciliary processs from which it enters the posterior chamber then it passes into the anterior chamber throuh pupil and escapes from the iridocorneal angle into the sinus vinus sclerae through the space of iridocorneal angle, and finally drains in the opthalamic veins via anterior ciliary veins. The third part of the refractive media of the eyeball is the lens which is a adjustable, transparent and elastic, convex body lacking blood vessels and nerves and the convexity of its anterior surfac is less than the of it's posterior surface. The last one of the refractive media of eye is the vitreous body. The vitreous body is a colorless, transparent and jelly-like body which is fills the posterior fourth-fifths of the eyeball . It is also a condensed superficially to form a transparent envelope, the vitreous membrane. The refractive media is an important theory that you must understand in your anatomy courses especialy when you want to be an opthomologistbecause most cases of the eye come from the refractive media. In the conclusion the four refractive media of eye are the ones that were mentioned above that are : Cornea + Aqueous humor + Lens + Vitreous body Prepared by: Dr. Mohamed Esse Rage & Dr. Abdirahman Abdulkadir Issak, Wuhan Medical University, China
Wiki User
∙ 14y ago
Wiki User
∙ 12y agoRetina receives light ,via cones and rod cells .
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