Prevalence of dissociated strabismus in children with ocular misalignment: a population-based study.

Purpose The purpose of this study was to report the prevalence of dissociated strabismus among a population-based cohort of children diagnosed with all forms of ocular misalignment. Methods The medical records of all children ( Results Of 627 children with strabismus, 12 (1.9%) were found to have DVD at their initial diagnosis at a mean age of 52 months (range, 3.5-206 months). During a mean follow-up of 10.4 years (range, 1-20 years), an additional 44 children were diagnosed with DVD, yielding a total of 50 children (7.9%). The common strabismus subtypes with the highest prevalence of DVD were, in declining order, congenital esotropia (53%), esotropia in the setting of a developmental deficit (25%), and accommodative esotropia (3.4%). None of the subjects were recorded as having DHD. Conclusions In this patient cohort, DVD was relatively uncommon and occurred most frequently among those with early-onset strabismus and strabismus in the setting of a developmental deficit.