Strabismus - Heterotropia

Strabismus (say "struh-BIZ-mus") is a vision problem in which both eyes do not look at the same point at the same time. Strabismus most often begins in early childhood. It is sometimes called crossed-eyes, walleye, or squint.

Normally, the muscles attached to each eye work together to move both eyes in the same direction at the same time. Strabismus occurs when the eye muscles don't work properly to control eye movement. When the eye muscles don't work as they should, the eyes may become misaligned and the brain may not be able to merge what one eye sees with what the other eye sees.

A child rarely outgrows strabismus after it has developed. Without treatment, strabismus can cause permanent vision problems. For example, if the child is not using one eye because it is misaligned, he or she can develop poor vision in that eye (called lazy eye or amblyopia).

Having strabismus can be hard on your child's self-esteem. It affects your child's appearance as well as his or her ability to see well. Other kids may tease your child for being cross-eyed or having a walleye. Be supportive of your child, and seek treatment right away.