A short essay on the physiology of eye moisture and intraocular pressure
Ciliary processes (the pars plicata area of the retina) form the moisture of the eye. Epithelial cells of the inner non-pigmented layer are the place of production of moisture. Moisture is formed as a result of a combination of active secretion, ultrafiltration and diffusion. Many intraocular agents, reducing intraocular pressure, inhibit secretion in the ciliary body. The moisture through the pupil flows into the anterior chamber of the eye, feeding the lens, cornea and iris. Moisture flows through the angle of the anterior chamber, in which the trabecular network and the surface of the ciliary body are located.
Approximately 80-90% of the eye's moisture flows through the trabecular network - the traditional outflow path, the remaining 10-20% through the surface of the ciliary body - the uveoscleral or alternative outflow pathway. The trabecular network is considered to be the place where the regulation of outflow of the intraocular fluid takes place. In the trabecular network, especially in conditions of increased intraocular pressure, the greatest resistance to outflow is possessed by the yukstakanalikulyarnaya region.
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The optic nerve
The optic nerve consists of all axons of cells of the ganglionic layer of the retina. The optic nerve is a structure that is affected by glaucoma. Functionally, damage to the optic nerve leads to a change in the visual fields. In the absence of treatment, increased intraocular pressure can lead to a progressive narrowing of the visual fields and ultimately to blindness.