Esotropia is a type of strabismus in which one or both eyes turn inward, towards the nose. It is different from exotropia, where the eyes deviate outward. Main types of esotropia: • Congenital (or infantile): Appears our first months of life. • Accommodative: Related to excessive visual effort, usually in children with hyperopia. • Intermittent or acquired: Can occur later in childhood or adult life, due to various causes (sight loss in one eye, neurological injury, among others). Symptoms: • Ol