Lazy eye is reduced vision that happens when one or both eyes do not develop normal sight during early childhood. It is also called amblyopia.
If this problem is found and treated early, normal vision may develop in both eyes. After the age of 8 years, treatment for amblyopia is less successful. If treatment does not take place early, the lazy eye may never see as well as the stronger eye.
Normally, both eyes work together to send pictures to the brain. The brain blends the two pictures into a single, clear picture. If pictures from each eye are different, the brain ignores the picture from one eye to avoid confusion. If the brain continues to ignore the picture from one eye, over time your child may not be able to see as well out of that eye. Your child's eyes may not work together because:
Babies often do not show any symptoms of amblyopia. However, they may have trouble following an object with their eyes or may have crossed eyes. Toddlers may favor one eye. They may get fussy when the strong eye is covered but not the other. Older children may complain of eye pain, watery eyes, or headaches. If you suspect there is something wrong with your child's eyes at any age, talk to your healthcare provider. Most of the time, amblyopia is found during a well child visit or a vision exam at school.
An eye care provider can diagnose amblyopia by watching how your child follows objects with his eyes or by watching your baby’s movements when one eye is covered.
Treatment usually starts by putting a patch over the eye that has better vision. This treatment forces your child to use the weaker eye for close up work or reading, which will strengthen that eye over time. The patch may need to be used for several hours a day over several months or even years to build up strength.
Other treatments may include eye drops, glasses or contact lenses.
Your eye care provider will also treat any vision problems that may have caused the amblyopia.
Follow the full course of treatment your healthcare provider prescribes. Ask your healthcare provider:
Make sure you know when your child should come back for a checkup.