title: Convergence insufficiency in idiopathic Parkinson's disease responsive to levodopa.
abstract: We report a patient with pathologically proven idiopathic Parkinson's disease (IPD) who developed diplopia secondary to convergence insufficiency during his motor "off" periods. Diplopia resolved with onset of motor benefit from levodopa. Neuro-ophthalmologic examination demonstrated convergence insufficiency during motor "off" periods that was alleviated after onset of motor benefit from levodopa. This is the first reported case of convergence insufficiency in IPD responsive to levodopa.
authors.affiliation: Washington University School of Medicine Department of Neurology and Neurologic Surgery (Neurology) Missouri, St. Louis 63110, USA. racetteb@neuro.wustl.edu
authors.forename: B A
authors.initials: BA
authors.lastname: Racette
authors.forename: M S
authors.initials: MS
authors.lastname: Gokden
authors.forename: L S
authors.initials: LS
authors.lastname: Tychsen
authors.forename: J S
authors.initials: JS
authors.lastname: Perlmutter
mesh_terms: D000978:Antiparkinson Agents / Q000627:therapeutic use*; D001921:Brain / Q000473:pathology; D003290:Convergence, Ocular; D004172:Diplopia / Q000209:etiology; D005099:Exotropia / Q000188:drug therapy* / Q000209:etiology; D005133:Eye Movements; D017809:Fatal Outcome; D006801:Humans; D007980:Levodopa / Q000627:therapeutic use*; D008297:Male; D008875:Middle Aged; D010300:Parkinson Disease / Q000150:complications* / Q000188:drug therapy / Q000473:pathology
chemical_list: D000978:Antiparkinson Agents; D007980:Levodopa