What is a lazy eye?Lazy eye (also calledamblyopia,the medical term for lazy eye) is a vision development disorder in which an eye fails to achieve normalvisual acuity, even with prescription glasses orcontact lenses. Lazy eye occurs early in life and can prevent your child from developing normal visual acuity in the affected eye.Thankfully, there are treatments for the underlying causes of lazy eye.And if detected and treated early, poor vision from lazy eye can be avoided. Amblyopia typically begins during infancy and early childhood. In most cases, only one eye is affected. But in some cases, amblyopia can occur in both eyes.If lazy eye is detected early in life and promptly treated, reduced vision can be avoided. But untreated lazy eye can cause permanent loss of vision in the affected eye.It's estimated that about 2-3% of the U.S. population has some degree of amblyopia.SymptomsLazy eye symptoms can sometimes be difficult to spot because amblyopia is typically a problem ofinfant vi...