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Cataracts

cataract

Cataracts

Near the front of the eye is a lens, which helps focus light onto the back of the eye (the retina).

Normally this lens is clear, but if it becomes cloudy, it is referred to as a cataract. There are several different types of cataract, but patients usually complain of gradually “misty” vision; or that they suffer “increasing glare” in bright light, or find difficulty with reading in dim light.

Cataracts usually develop with advancing years and can vary in the speed in which they develop.

 

Signs and Symptoms

If the symptoms of the cataract affect normal day-to-day activities (eg driving), then a relatively common operation is needed to restore the clarity of the eye.

 
Detection and Diagnosis


Your Optometrist can diagnose opacification during a routine eye exam using a slit lamp microscope, though sometimes the pupils need to be  dilated to fully assess the condition.
 

Treatment

A cataract does not need to be fully developed or 'ripe' before surgery. A clear plastic (implant) lens is used to replace the cataract. Before the operation, the eyes’ size and shape will be measured to establish what power of implant lens will be needed to focus the eye correctly.
Surgery is usually done under a local anaesthetic and takes between 10 and 30 minutes. Most people can go home later that day if there’s someone to help them for the next 24 hours. The operation, generally, has a very high success rate.
The improvement each person experiences is dependent on the extent of the capsular clouding and the overall eye health.

 

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