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For amblyopia to be treated, your child must use the weak eye. This will force the eye to get stronger. Over time this corrects the vision in the weak eye.
Your doctor may suggest:
Blocking the strong eye with an eye patch.
Blurring the strong eye with eyedrops or glasses.
Your child may have to wear the patch or glasses most of the day or for just part of each day. Treatment may last for a few weeks or months. Severe cases may take longer.
If another problem is causing the amblyopia, such as a cataract, it also needs to be treated.
Treatment is best started before age 6 and should begin before your child's vision has fully developed, around age 9 or 10. Later treatment will most likely be less helpful but may still improve vision in some cases. A child with amblyopia who does not get treatment may have poor vision for life.
After treatment ends, be sure to set up follow-up eye exams for your child. Amblyopia can return even after successful treatment.