title: [Relation between concomitant strabismus and refractive error--analysis of 217 cases].
mesh_terms: D000293:Adolescent; D000328:Adult; D000367:Age Factors; D002648:Child; D002675:Child, Preschool; D002681:China; D006801:Humans; D012030:Refractive Errors / Q000150:complications* / Q000453:epidemiology; D013285:Strabismus / Q000150:complications* / Q000453:epidemiology