cataract icon


A cataract is clouding of the lens in the eye. The lens of the eye is supposed to be clear.

Cataract showing a clouding of the lens of the eye
A cataract forms when there is a build-up of protein on the lens making it cloudy. This prevents light from passing through the lens causing vision loss. Cataracts affect over 700,000 Australian’s and is one of the most common reasons people need eye surgery.

What are the types or cataracts?

The types of cataracts and their causes include:

Age Related Cataracts

This cataract develops as a normal part of ageing

Secondary cataracts

These cataracts often develop from other health conditions such as glaucoma, prolonged use of corticosteroids and diabetes, excessive ultraviolet light may also be a cause.

Traumatic Cataracts

These cataracts are a result of an injury to the eye.

Congenital Cataracts

Babies are sometimes born with cataracts or can develop in childhood. It is common for the cataract to be in both eyes.

What are the symptoms of cataracts?

Cataracts characteristically form very slowly and cause few symptoms until they start to block light. Typical symptoms include:

  • Vision that is blurry, hazy or foggy.
  • Increased sensitivity to light and increased glare.
  • Difficulty with night vision including glare from oncoming headlights.
  • Colours often become duller and darker.
  • Near vision in glasses may improve for a short time.
  • More rapid changes glasses prescriptions than would normally be expected.

What are the cataract treatment options?

For treatment of cataracts a lens replacement is required to remove the cloudy lens and replace it with a clear one. At Envision Eye Centre we offer the newest surgical technique in cataract surgery, laser-assisted cataract removal which is more accurate and less invasive.

Related Articles