Lazy Eye in children
What Is a Lazy Eye?
A lazy eye is when the vision of one of your eyes doesn’t develop the way it should. Doctors also call this amblyopia. Without treatment, your brain will learn to ignore the image that comes from the weaker eye. That could cause permanent vision problems.
Signs of a Lazy Eye
Amblyopia starts in childhood, usually between ages 6 and 9. Identifying and treating it before age 7 brings the best chances of fully correcting the condition.
Common symptoms include:
Trouble telling how near or far away something is (depth perception)
Squinting or shutting one eye
Lazy Eye Causes
Doctors don’t always know what’s behind some cases of amblyopia. Causes may include:
Refractive errors: One eye might have much better focus than the other. The other eye could be nearsighted or farsighted. Or it could have astigmatism (distorted or blurry vision). When your brain gets both a blurry image and a clear one, it starts to ignore the blurry one. If this goes on for months or years, vision in the blurry eye will get worse.
Strabismus: This is when your eyes don’t line up the way they should. One could turn in or out. People who have strabismus can’t focus their eyes together on an image, so they often see double. Your brain will ignore the image from the eye that isn’t aligned.
Cataracts: A cloudy lens inside your eye can make things look blurry. The vision in that eye might not develop the way it should.
Droopy eyelid (ptosis): A sagging eyelid can block your vision.
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