Hypotropic Dissociated Vertical Deviation; a Case Report

Purpose: to report the clinical features of a rare case of hypotropic dissociated vertical deviation (dvd). case report: a 25-year-old female was referred with unilateral esotropia, hypotropia and slow variable downward drift in her left eye. she had history of esotropia since she had been 3-4 months of age. best corrected visual acuity was 20/20 in her right eye and 20/40 in the left one when hyperopia was corrected. she underwent bimedial rectus muscle recession of 5.25mm for 45 prism diopters (pds) of esotropia. she was orthophoric 3 months after surgery and no further operation was planned for correction of the hypotropic dvd. conclusion: this rare case of hypotropic dvd showed only mild amblyopia in her non-fixating eye. the etiology was most probably acquired considering hyperopia as a sign of early onset accommodative esotropia.