Acute Acquired Comitant Esotropia

Abstract

　The underling mechanism that contributes to acute acquired comitant esotropia（AACE）remains unclear; however, AACE is classified into several types based on the patient’s clinical presentation at the time of diagnosis. Although rare, AACE is known condition that has been described in the previous literature. An increasing number of case reports discuss AACE in recent time, and overuse of digital devices is suspected as a contributor. Currently, multicenter collaborative research is being performed by the Japanese Association for Strabismus and Amblyopia and the Japanese Association of Pediatric Ophthalmology to investigate the association between AACE and digital devices. Although uncommon, clinicians should be mindful that AACE may occasionally be accompanied by serious lesions such as brain tumors.