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About Cataracts
A cataract is a clouding of the lens in the eye. Normally the lens is clear and sits behind the iris and pupil and focuses light onto the back of the eye. When it becomes clouded, vision is hazy and blurred. It is caused by the proteins in the lens sticking together and happens as we grow older.
Cataracts can be accelerated by various conditions: long exposure to sunlight and ultra-violet light; if you smoke; if you suffer from diabetes; if you take certain medication such as steroids; or if have had eye surgery or an injury. It is also possible to be born with cataracts.
In the early stages of cataracts you may notice various symptoms:
- your vision may become misty and less clear
- vehicle headlights dazzling you at night time
- objects do not seem as colourful
In the first instance you should visit your optometrist who may be able to supply you with new glasses to improve your vision. When your symptoms get worse (no longer improving with new glasses) surgery to replace the lens inside your eye with a plastic one is the only option.
Once you have surgery, which has a very high success rate, your vision should improve. After surgery you will probably need to have your glasses changed again so will be told to visit your optometrist for help and advice about 4 weeks after the surgery.
Cataracts and you
This video is produced by the College of Optometrists and shows how cataracts might affect your vision. Cataracts are formed when the clear lens inside your eye becomes cloudy or misty. Cataracts may mean that you have to change your prescription for your glasses, and you may notice that your vision is less clear and distinct.If you have any concerns about your eyes, contact your optometrist. Download Cataract Fact Sheet
All about cataracts
This video is produced by the College of Optometrists and explains that cataracts are formed when the clear lens inside your eye becomes cloudy or misty. This is a gradual process that usually happens as we get older. It does not hurt. The early stages of a cataract do not necessarily affect your sight.The main cause is age and most people will eventually develop a cataract in both eyes, although one eye may be affected before the other. If you have any concerns about your eyes, contact your optometrist.
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