What is a Cataract? Common Symptoms of Cataracts

How the eye functions and the development of cataractsA cataract is the clouding of the normally clear lens of the eye.It can be compared to a window that is fogged with steam. When the lens becomes cloudy, the light rays cannot easily pass through it. When a cataract develops, the image becomes blurred, and your functional vision is reduced.This is illustrated in our video

How Your Eyes Function and Development of Cataracts.

As we age the quality of our vision declines and the contrast sensitivity gets worse. See a simulation of what vision could be at that stage:

Loss of Contrast Sensitivity and Driving.

video age thumbnail

There are many common misconceptions about what causes cataracts.

They include:

  • A cataract is not a film over your eye.
  • A cataract is not caused as a result of eye-strain.
  • A cataract is not a cancer.
  • A cataract will not spread from one eye to the other.
  • Laser Eye Surgery does not cause a Cataract.
  • And cataracts is not a cause of irreversible blindness.

Some of the more common symptoms of cataracts are:

  • A painless blurring of vision.
  • Sensitivity to glare or strong light.
  • The need to change your eyeglasses prescription frequently.
  • Needing a bright source of light to read.
  • Experiencing poor night vision.
  • A fading, or yellowing, of colours.

The amount, and pattern of cloudiness within the lens of your eye can vary. If the cloudiness is not near the centre of the lens, you may not even be aware that a cataract is developing.

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(1800 37 3937) to talk to one of our Patient Care Team now or
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