Glaucoma

How is glaucoma detected?

Because people with glaucoma are almost never aware that they have a problem, and because the damage is irreversible, screening for glaucoma is crucial to detect the disease early on, so that treatment can be started before too much harm is done.

Optometrists carry out screening tests for glaucoma, if they think that you have, or may have, a problem, they will refer you to an Ophthalmologist for further assessment and treatment if necessary.

Testing for Glaucoma

Testing for Glaucoma

A variety of tests are carried out to detect glaucoma, these include:

  • Ophthalmoscopy where lenses and a microscope are used to examine the back of the eye.
  • A test of your eye pressure, called tonometry.
  • Measuring the thickness of your cornea (corneal pachymetry).
  • Examining the drainage angle of the eye using a special mirror to see a part of the eye that is not visible on direct examination (this is called gonioscopy).
  • Visual field testing - this is a test where you sit infront of a bowl or screen whilst lights briefly appear, you have to press a button every time you see a light. This lets me work out whether you haveany vision missing and if so, how much.
  • Ocular Coherence Tomography, or OCT, is a way of imaging the optic nerve and the surrounding eye which provides a very accurate record of your eye.

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