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Eyesight Problems: Glaucoma

To function properly, the human eyeball requires a certain amount of internal pressure, which is provided by a flow of liquid. Too much or too little pressure can cause damage to the optic nerve at the back of the eye (though problems also arise if the nerve itself is flawed). This is a disease called glaucoma and it irreparably damages the optic nerve, which carries information from your eye to your brain.

There are four types of glaucoma: chronic, acute, secondary and developmental. The latter is very rare, affecting only babies.

Chronic glaucoma becomes more common with increasing age. Uncommon in under-40s it affects 1% of people over this age and 5% over 65. Points to note:

  • Peripheral vision is affected after creating a ‘tunnel’ effect
  • Consequences include difficulty with mobility and physical hazards
  • Early detection is essential to inhibit damage and protect vision
  • Existing damage cannot be repaired.

Visioncall Sight Tests

To maximise protection, it is recommended that tests are taken every two years. There are three specialist tests, all painless, and for best results all three should be taken. Visioncall’s optometrists are trained in identifying glaucoma and in conducting the tests with the most advanced equipment. Treatments vary, and may include eye drops and laser surgery.



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