Glaucoma types
The most blanket type, primary open angle glaucoma (POAG), often has no symptoms and there was by a nickname "a thief of the bootlicker of a view". One factor can be the relative obstruction on reflux of a watery moisture from an eye. The watery moisture is yielded by an epithelium covering a ciliary body of an eye which then flows through a pupil and in the forward cabinet of an eye. The trabecular network then drains humour to channel Schlemm's, and ultimately to venous system. All eyes have some ophthalmotonus which causes some fastness to a cataract water through channel Schlemm's and trabeculum. If the ophthalmotonus (IOP) is too high, (> 21.5 mm hg) The pressure shown on walls of eye effects in squeezing of eye structures. However, other factors, such as blood flow disturbances in an optic disk can interreact with IOP to damage an optic nerve. In one third of cases POAG is statistically normal IOP. It term as a normal glaucoma of a tension (NTG). As examination of an optic nerve and testing perimetria not always become in addition to measuring IOP in dangerous, NTG is badly diagnosed, and the Condition represents late. The pigmental glaucoma caused by a syndrome of a variance of a pigment, is shape POAG.
Other type, acute angle-closure glaucoma (AACG), is characterized by acute rising on an ophthalmotonus. It meets in acquisitive eyes when the pupil dilates and blocks a fluid cataract through it, leading to the peripheric iris blocking a trabecular network. The acute angle-closure glaucoma can hurt and has reduced visual acuteness (the erased vision), and can lead to nonreversible visual losses within short time. It is the eye grave condition demanding immediate treatment. It is a lot of people with a glaucoma test halos round bright light just as the loss of sight characterized by illness.
Primary congenital glaucoma or buphthalmos - rare genetic illness causing babies. Newborns give the enlarged globes and omrachlennye corneas. It is considered, that the reduced trabecular permeability - the parent of the enlarged ophthalmotonus. Surgery - treatment.
The secondary glaucoma meets as complication of various medical Conditions, such as the eye surgery, the advanced cataracts, eye wounds, a few eye tumors, a uveitis, diabetes or use of preparations of a corticosteroid.
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