Cataracts

When functioning normally the lens should be clear to allow light through and focus on the retina. A cataract is caused in the eye when the lens becomes clouded. The exact cause of cataracts is currently unknown.

• The most common type of cataract is age-related.

• Many people over 60 have some form of cataract.

• Cataracts can normally be treated successfully.

Cataracts and reading

Cataracts can cause blurry sight, sensitivity to bright light and change of colour vision. A person with cataracts may benefit from large print.

• Date: May 2009

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