What is the harm glaucoma

Glaucoma is the most common sexually transmitted diseases blinding> one disease, The elevation of intraocular pressure, optic nerve atrophy and visual field defect is characterized. In most cases, damage to the optic nerve is the main reason for high intraocular pressure, a small number of patients in the normal IOP, known as the normal tension glaucoma. Although the clinical features of glaucoma diversification, but the harm is the most important visual function damage, manifested as decreased visual acuity and visual field defect. Visual general decline in acute ocular hypertension, vision problems early so that high intraocular pressure is due to corneal endothelial corneal can not be discharged within the normal moisture results in corneal epithelial edema, acute sustained high intraocular pressure, visual acuity to make light flu This is because high intraocular pressure as a serious impact on the metabolism of cells. Chronic high intraocular pressure and continuing high intraocular pressure caused the latter part of the optic nerve atrophy, leading to visual field defect. Glaucoma is optic atrophy of multiple factors, but the main reason is mechanical oppression and ischemic optic disc. High intraocular pressure the sclera sieve plate backward through the sieve plate by optic fiber extrusion and traction, blocking the optic nerve fibers axoplasmic flow, high intraocular pressure may cause ischemic optic disc, the increased fiber optic nerve injury, which eventually led to the optic nerve atrophy. As a visual field defect with the occult and progressive, especially in primary open-angle glaucoma, by the early clinical manifestations or no specificity difficult not obvious that, once found that the decline in attendance vision, the course is often advanced, visual field defect serious, without resume. So that early detection of glaucoma, timely treatment