title: Transient cortical visual impairment after video-assisted thoracic surgery: a case report.
abstract: BACKGROUND
  Visual loss associated with thoracic surgery has been reported mostly after coronary angiography or bypass surgery. The position of video-assisted thoracic surgery (VATS) is usually lateral, thus not compressive to the globe. Visual loss after VATS has not been reported. Herein we report a patient without any cardiovascular risk factors who experienced transient cortical blindness after an uneventful VATS.
  
  
  METHODS
  A 40-year-old man noticed a visual loss at the recovery room after VATS. He showed normal pupillary reflex, normal optic disc appearance, and homonymous hemianopia respecting the vertical meridian, thus was typical for cortical visual impairment.
  
  
  CONCLUSIONS
  Transient cortical visual impairment could be encountered after an uneventful VATS in a patient without any cardiovascular risk factors.
authors.affiliation: Department of Ophthalmology, Seoul National University College of Medicine, Seoul National University Bundang Hospital, 166, Gumiro, Bundang-gu, Seongnam, Gyeonggi-do, 463-707, Korea. nan282@snu.ac.kr.
authors.forename: Hee Kyung
authors.initials: HK
authors.lastname: Yang
authors.affiliation: Department of Ophthalmology, Seoul National University College of Medicine, Seoul National University Bundang Hospital, 166, Gumiro, Bundang-gu, Seongnam, Gyeonggi-do, 463-707, Korea. hjm@snu.ac.kr.
authors.forename: Jeong-Min
authors.initials: JM
authors.lastname: Hwang
mesh_terms: D000328:Adult; D019575:Blindness, Cortical / Q000175:diagnosis / Q000209:etiology* / Q000503:physiopathology; D006423:Hemianopsia / Q000175:diagnosis / Q000209:etiology / Q000503:physiopathology; D006801:Humans; D008297:Male; D020775:Thoracic Surgery, Video-Assisted / Q000009:adverse effects*; D058609:Visual Field Tests; D014794:Visual Fields / Q000502:physiology