Glaucoma
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Glaucoma: within the eye there
is a fluid that is called "aqueous humor". The aqueous humor is normally
maintained at a pressure of approximately 15 to 30 mm mercury in the dog.
It is imperative that the pressure is constant to maintain the normal shape
and firmness of the eyeball. Aqueous humor is produced by a part
of the eye called the epithelium of the ciliary processes. It was
established in 1979 by Van Buskirk, that the aqueous humor flows into the
posterior chamber, through the pupil into the anterior chamber and peripherally
to the spaces of the iridocorneal angle. Here it is resorbed into the bloodsteam
by the scleral venous plexus. If this flow is blocked in any way
pressure increases and results in glaucoma.
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