amblyopia

A decrease in best-corrected visual acuity, typically in one eye, that cannot be directly attributed to any structural abnormality of the eye or visual pathway. It results from abnormal visual experience during early childhood, leading to cortical suppression of vision in the affected eye. Common causes include strabismus, anisometropia, and visual deprivation. Early detection and treatment with glasses, patching, or atropine can improve visual outcomes.