Cataracts usually develop as a result of ageing, which
causes changes to the structure of the lens of the eye.
The most common symptoms of cataracts include:
- Cloudy, fuzzy or blurred vision.
- Spots in vision.
- Sensitivity to light.
- Seeing "halos" around lights.
- Poor night vision.
- Perceiving colour as faded or washed out.
The lens of the eye changes shape and focuses incoming light onto the retina to allow you to see things clearly both near and far away.
As you age, the lens tissues starts to break down and may clump together to form a cloud in a small part of the lens. Over time the cloud may spread and become more dense, affecting a larger area of the lens and making vision worse.
Risk factors
Aside from ageing, changes to the tissue that makes up your eye can be caused by injury, genetic disorders or other health problems.
Risk factors for developing cataracts include:
- Diabetes
- High blood pressure
- Injury to the eye
- Smoking or excess alcohol consumption
- Sunlight exposure
- Arthritis
- Family history of cataracts
- Short sightedness
- Some medications used to lower blood pressure
- Obesity
Source: http://www.bodyandsoul.com.au/
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