الفهرس 
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Abstract
Glaucoma is a term used to describe a group of disorders that have in common a distinct type of optic nerve damage, causing irreversible defects in the visual field. POAG is a chronic optic neuropathy, which occurs with an open angle in the absence of other explanatory causes. While there is no standard definition, current criteria require the presence of visual field and optic disc damage, regardless of intraocular pressure (IOP).
The management of glaucoma should be designed to preserve vision and to achieve the best quality of life for the patient, whose total well- being is an integral part of the treatment plan. The treatment and management of a patient with POAG poses a great challenge for the physician and it resembles a complex puzzle.
Studies shows that lowering the IOP can stop progression of the disease which is the only risk factor can be controlled. This control can be achieved by medical, LASER or surgical treatment.
Surgery for POAG is indicated when there is progression of the disease despite of maximal medical or LASER treatment. Surgery also can be done if there is no compliance from the patient or when the disease affecting the patient quality of life or life style.