CATARACT

CORNEA

LASIK-LASER

WEAK EYESIGHT

Sometimes the drainage angle of the eye may become completely blocked.
It is as though a sheet of paper floating near a drain suddenly drops over the opening and blocks the flow out of the sink. In the eye, the iris (the part that makes eyes blue or brown) may act like the sheet of paper closing off the drainage angle.

When eye pressure builds up suddenly, it is call acute angle-closure glaucoma.

Symptoms may include:

• Blurred vision
• Severe eye pain
• Headache;
• Rainbow haloes around lights
• Nausea and vomiting
  

If you have any of these symptoms, cell your ophthalmologist immediately. Unless an ophthalmologist treats acute angle-closure glaucoma is more common in Asian people than in people of European descent; it is rare in people of African descent.

In some patients glaucoma has features of both the chronic open angle type and the acute angle closure type. This may be called chronic angle closure glaucoma or mixed mechanism glaucoma. It occurs more frequently in people of African and Asian descent.