Amblyopia, a loss or lack of clear vision in one or both eyes even with glasses, is a result of the eyes and brain not working together. This typically begins in infancy or early childhood. Causes of amblyopia include visual problems such as high amounts of nearsightedness, farsightedness, astigmatism and conditions such as a droopy eyelid, congenital cataract, and/or misaligned eyes (strabismus).
Signs and symptoms of amblyopia include frequent squinting, difficulty seeing, tilting or turning their head, closing or covering an eye to see, poor coordination or clumsiness. If treated early, it can often be improved. Left untreated, amblyopia can permanently impair vision and depth perception. Treatments includes glasses, vision therapy, eye patching, eye drops, and/or surgery.