Glaucoma Overview Topic Guide
Glaucoma: Glaucoma can be caused by a number of eye diseases that can damage the optic nerve, typically by elevating pressure inside the eye, which is called intraocular pressure (IOP) or ocular hypertension. Symptoms begin slowly and include vision loss and irregularities, eye pain, headache, nausea, and vomiting. Beta-blockers, Alpha-adrenergic agonists, and prostaglandin analogs are drugs used to treat glaucoma. Sometimes surgery is necessary, especially with congenital glaucoma. The disease is not curable, but can be managed.
Normal-Tension Glaucoma Normal-tension Glaucoma or low-tension glaucoma is a condition in which the optic nerve is damaged despite normal fluid pressure inside the eye (other types of glaucoma result vision loss because of abnormally high pressure inside the eye. Normal-tension glaucoma typically occurs in older adults and can be caused by congenital nerve defects and irregularities in blood flow to the eye. Eyedrops and surgery are treatments for this disorder.
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