Prevalence and types of strabismus in cerebral palsy: A global and historical perspective based on a systematic review and meta-analysis.

Generational changes in strabismus prevalence appear to reflect a transition of CP types and an increase in prevalence as countries attain higher income and more effective maternal health care. The distribution of esotropia and exotropia in CP patients largely reflects the horizontal strabismus type that is predominant in the subject's ethnicity.