Amblyopia (lazy eye) is the loss or lack of the full development of vision in one eye that is not fully correctable with lenses and is not the result of any identifiable eye health problem. It usually occurs before age eight. Infants born prematurely, or with low birth weight, are at a greater risk for the development of this condition. It is estimated that two to four percent of children have amblyopia. Amblyopia is usually due to conditions such as crossed eyes (strabismus) or a large difference in the refractive error between the two eyes. Vision in the amblyopic eye may continue to decrease if left untreated. The brain simply pays less and less attention to the images sent by the amblyopic eye. Eventually the condition stablilizes and the eye becomes virtually unused. It is quite difficult to effectively treat amblyopia at this point. A comprehensive optometric examination can determine the presence of amblyopia. The earlier it is diagnosed, the greater the chance for a successful treatment. In young children, patching the good eye may help the amblyopic eye to improve. In addition, to help improve vision function, vision therapy techniques may be used. Eyeglasses or contact lenses my be prescribed to correct any refractive errors. Early detection and treatment of amblyopia and correcting the eye.