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Glaucoma is a group of eye diseases causing damage to the optic nerve that can lead to permanent vision loss and blindness if not treated.


  • Increased intraocular pressure

Glaucoma is usually asymptomatic. Certain kinds may cause symptoms including:

  • Sudden loss of vision
  • Loss of peripheral vision
  • Headache
  • Eye pain
  • Sensitivity to light
  • Lack of contrast sensitivity
  • Tearing
  • Nausea or vomiting

The damaged already caused by glaucoma is irreversible but if detected early, treatment can prevent further damage. It may include:

  • Medication such as eye drops or pills to help drain the eye fluid to reduce pressure or to reduce the production of fluid
  • Laser trabeculoplasty to help the fluid drain out
  • Surgery to create a new opening for draining the fluid


There is no way to prevent glaucoma.