About cataracts

A cataract is a clouding of the lens in the eye that affects vision. Most cataracts are related to aging, however, cataracts can also develop in younger people.

Other factors that can increase the risk of cataracts are diabetes, smoking, an eye injury and prolonged exposure to sunlight.

Symptoms may include:

  • Sensitivity to glare
  • Distortation
  • Cloudy or blurry vision
  • Colours appear faded
  • Light may appear too bright
  • Poor night vision

Multiple images in one eye

A cataract can occur in either one or both eyes but cannot spread from one eye to the other.


In the early stages when symptoms start appearing you may be able to improve vision through new glasses, a stronger prescription or with other visual aids.

In cases where the condition is advanced, cataract surgery is a highly successful way to restore vision.

The specialists at St George’s Eye Care have wide experience in cataract surgery, having performed thousands of successful operations. The surgery is commonly performed at our purpose built facilities at St George’s Hospital.

The operation is performed as day surgery and usually under topical anaesthetic.

Further information

Cataracts (AAO web) »

Cataract Surgery (AAO download) »


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