title: The Marcus Gunn phenomenon. A review of 71 cases.
abstract: We have reviewed the clinical findings, natural course, pathologic observations, and management of 71 patients with the Marcus Gunn phenomenon. We found individuals with this syndrome to have a significant incidence of amblyopia (59%), double elevator palsy (25%), anisometropia (25%), and superior rectus muscle palsy (23%). Long-term follow-up did not reveal a case that improved with age. In most patients requiring surgery, we recommend a unilateral levator excision on the affected side plus a bilateral frontalis suspension.
mesh_terms: D000293:Adolescent; D000328:Adult; D001763:Blepharoptosis / Q000150:complications / Q000151:congenital* / Q000628:therapy; D002648:Child; D002675:Child, Preschool; D003131:Combined Modality Therapy; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D007223:Infant; D008297:Male; D012189:Retrospective Studies; D013285:Strabismus / Q000150:complications; D013577:Syndrome