Cataracts

Cataracts

A cataract is a clouding of the normally clear lens of the

eye

. Cataracts are treated by removing the cloudy lens of the eye with surgery. Sun protection and

quitting smoking

may help prevent cataracts. Cataracts are common in older people.

Due to its association with ageing, eventually everyone will develop a cataract if they live long enough. By the age of 70, almost all of us will have some degree of cataract formation.

Symptoms of cataracts

Symptoms of a cataract can include:

blurred vision

sensitivity to light (glare)

reduced night vision

fading or ‘yellowing’ of colours.

Diagnosis of cataracts

Cataracts can be diagnosed with an

eye examination

. If you notice any changes in your vision, you should have your vision checked by a

GP (doctor)

,

optometrist

or eye specialist.

Causes of cataracts

Most cataracts develop as part of the ageing process. Long term and unprotected exposure to UV sunlight,

smoking

,

diabetes

and long term

corticosteroid

use are among increased risk factors for developing cataract.

Treatment for cataracts

Your

ophthalmologist

will advise if your cataract should be removed. A cataract may only be removed by

surgery

, usually performed under a

local anaesthetic

.. Approximately 250,000 cataract operations are performed in Australia each year.

A small incision is made and the cataract-affected lens is removed. It is replaced with a small artificial intraocular lens. Surgery usually requires no stitches and visual recovery typically occurs within days. Once a cataract is removed, it cannot redevelop.

Prevention of cataracts

Wearing sunglasses to protect from prolonged direct exposure to UV sunlight, not smoking and good diabetes control if you suffer from diabetes may assist to prevent the early development of cataract.

Where to get help

Your

GP (doctor)

Optometrist

Ophthalmologist (eye specialist)

Centre for Eye Research

Australia

External Link