Glaucoma is a disease that damages the optic nerve. It is not a single disorder but is rather a group of diseases. The pressure in the eye is often elevated but is not always so.


Certain types of glaucoma present with a painful or blurred eye, but this is uncommon. Most glaucoma does not cause any symptoms until it is too late. For this reason it is important that everyone over the age of 40 has a regular eye check.

Glaucoma is often hereditary. If you have a first degree relative with glaucoma your risk of developing the disease is significantly higher (about 10X). Remember though that it is entirely possible that members of your family have (or had) glaucoma but are (or were) unaware of it.

Glaucoma can happen to anyone at any age, although it is much more common in those over 40.
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Symptoms of glaucoma:

  • Most often there are no symptoms and eyesight is normal
  • Most often there is no pain
  • Blind spots may appear in the periphery, although most people will not notice this
  • Central vision may be affected
  • In advanced cases glaucoma leads to blindness
  • Glaucoma can affect one or both eyes