title: Evaluation of the central macula in commotio retinae not associated with other types of traumatic retinopathy.
abstract: OBJECTIVE
  To report on the anatomical and functional changes to the macula in nine patients suffering from commotio retinae not accompanied by any other types of traumatic retinopathy.
  
  
  METHODS
  Nine injured eyes with commotio retinae were evaluated soon after ocular trauma with ophthalmic examination, including Spectral-domain optical coherence tomography (SD-OCT). In 12 eyes of 6 patients, Humphrey visual field (HVF) and multifocal electroretinogram (mfERG) were performed. Re-examinations were periodically performed for a mean of 26 days. Data from 9 injured eyes were collected and compared to data collected from the 9 non-affected eyes of the same patients.
  
  
  RESULTS
  SD-OCT revealed no significant differences in the foveal thickness and total macular volume between traumatized and intact eyes in all 9 patients. Only 3 out of the 9 injured eyes showed abnormal findings in SD-OCT images such as discontinuity of the inner/outer segment (IS/OS) junction or abnormal hyper-reflectivity from the IS/OS and retinal pigment epithelium (RPE) lines in the macula. HVF and mfERG results did not show any functional deterioration in the injured eyes compared with intact eyes. During follow-up, the commotio retinae resolved in all 9 eyes. The changes to the outer retinal region detected in 3 patients by SD-OCT were also resolved.
  
  
  CONCLUSIONS
  Acute retinal changes in commotio retinae, not associated with other retinal pathologies, were resolved without histological and functional sequelae. In a few cases of commotio retinae, SD-OCT revealed transient abnormalities mainly observed at the IS/OS and RPE complexes.
authors.affiliation: Department of Ophthalmology, Soonchunhyang University Bucheon Hospital, Soonchunhyang University College of Medicine, Bucheon, Korea.
authors.forename: Joo Youn
authors.initials: JY
authors.lastname: Park
authors.forename: Woo Ho
authors.initials: WH
authors.lastname: Nam
authors.forename: Seung Hoon
authors.initials: SH
authors.lastname: Kim
authors.forename: Sun Young
authors.initials: SY
authors.lastname: Jang
authors.forename: Young-Hoon
authors.initials: YH
authors.lastname: Ohn
authors.forename: Tae Kwann
authors.initials: TK
authors.lastname: Park
mesh_terms: D000293:Adolescent; D000328:Adult; D002648:Child; D004596:Electroretinography; D005131:Eye Injuries / Q000145:classification / Q000150:complications* / Q000473:pathology; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008266:Macula Lutea / Q000293:injuries* / Q000473:pathology / Q000503:physiopathology; D008297:Male; D008875:Middle Aged; D011379:Prognosis; D012164:Retinal Diseases / Q000209:etiology* / Q000473:pathology / Q000503:physiopathology; D055213:Retinal Pigment Epithelium / Q000293:injuries / Q000473:pathology / Q000503:physiopathology; D012189:Retrospective Studies; D041623:Tomography, Optical Coherence; D015599:Trauma Severity Indices; D014792:Visual Acuity; D014794:Visual Fields; D055815:Young Adult