Cataracts are one of the most common causes of visual impairment and blindness worldwide. In the UK around 1 in 3 people over 65 have cataracts in one or both eyes.
Cataracts are cloudy or misty patches that can develop in the lens of the eye making it difficult to see clearly. The lenses in our eyes are normally transparent, allowing light to pass through and be focused on an area of the back of the eye called the retina. Cataracts hinder this transfer of light making it difficult to see. Cataracts can develop in either or both eyes and, if not treated, tend to gradually worsen over time. This causes a progressive loss of vision.
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