What is a cataract?
A cataract is a clouding of the lens inside the eye that may result in poor vision.
Most cataracts form as a result of ageing and long-term exposure to ultraviolet light.
What are the symptoms?
- Cataracts are usually associated with:
- Slow and painless blurring of vision that may not improve with prescription glasses
- Increased sensitivity to bright lights, such as while driving at night.
- Changes in how colour is seen – objects may appear to have a yellow or brown tinge.
Who is at risk?
Age: for each decade over 50 years of age the risk is more than doubles
- Exposure to sunlight
- Those who have used corticosteroid medications for long periods
- People who have had an eye injury
What can be done?
- New prescription glasses may help to improve vision for some people. However, as cataracts worsen, surgery may be required to restore vision
- Cataract surgery is performed by an ophthalmologist. The cloudy lens in the eye is replaced with a new synthetic one.
- Cataract surgery is common, very safe, and is usually done as a day surgery procedure under local anaesthesia.