Amblyopia, also known as “lazy eye,” is reduced vision – uncorrectable with lenses in an eye that has not received adequate use during early childhood.
There is no visible anatomical defect. Amblyopia has many causes. Most often it results from either a misalignment of a child’s eyes, such as crossed eyes (strabismus), or a difference in image quality between the two eyes (one eye focusing better than the other, also known as anisometropia).
In both cases, one eye becomes stronger, suppressing the image of the other eye. If this condition is not treated in early childhood, the weaker eye may become permanently impaired.
With early diagnosis, amplyopia can be treated and loss of vision prevented.