title: Voluntary entropion.
abstract: Voluntary entropion, which has been reported only once before, was photographically documented in a 12-year-old girl. The lower-eyelid retractors and protractors were clinically normal. The postulated mechanism of the entropion was selective innervational control of separate components of the orbicularis oculi complex, which allowed the preseptal portion to override the pretarsal portion.
mesh_terms: D002648:Child; D004774:Entropion / Q000209:etiology*; D005260:Female; D006801:Humans