Cataract is an eye condition where the lens of the eye becomes cloudy, making vision blurry or dim.
👁️ What normally happens
Your eye lens is usually clear, like clean glass. It helps focus light so you can see clearly.
👁️ What happens in cataract
The lens becomes cloudy, so light can’t pass through properly. This causes:
- Blurry or cloudy vision
- Trouble seeing at night
- Sensitivity to bright light
- Colors looking faded
- Double vision in one eye (sometimes)
Common causes
- Aging (most common)
- Eye injury
- Diabetes
- Long-term steroid use
- Smoking or too much sunlight
- Some people are born with it (congenital cataract)
Is cataract dangerous?
Yes, if untreated it can cause serious vision loss or blindness, but it is treatable.
Treatment
- Early stage: glasses or brighter light can help
- Advanced stage: simple surgery to replace the cloudy lens (very common and safe)