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Refracting Media

Categories: Diseases of The Eye and Ear

The aqueous humor completely fills the anterior and
posterior chambers of the eyeball. The anterior chamber is the space

bounded in front by the cornea; behind by the front of the iris. The

posterior chamber is a narrow chink between the peripheral part of the

iris, the "suspensory ligament" of the lens and the "ciliary processes."






The vitreous body forms about four-fifths of the entire globe, It fills

the concavity of the retina and is hollowed in front, forming a deep

cavity, for the reception of the lens. It is perfectly transparent and of

the consistency of thin jelly. The fluid from the vitreous body resembles

nearly pure water. The crystalline lens enclosed in its capsule is

situated immediately behind the pupil, in front of the vitreous body. The

lens is a transparent, double-convex body. It is more convex on the

posterior than on the anterior surface. The rays of light go through this

body and converge to a point at the back of the retina.



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