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Amblyopia

Amblyopia (also called lazy eye) is a type of poor vision that happens in just 1 eye. It develops when there’s a breakdown in how the brain and the eye work together, and the brain can’t recognize the sight from 1 eye. Over time, the brain relies more and more on the other, stronger eye — while vision in the weaker eye gets worse.

It’s called “lazy eye” because the stronger eye works better. But people with amblyopia are not lazy, and they can’t control the way their eyes work.

Amblyopia starts in childhood, and it’s the most common cause of vision loss in kids. Up to 3 out of 100 children have it. The good news is that early treatment works well and usually prevents long-term vision problems.