title: Amsler grid examination and optical coherence tomography of a macular hole caused by accidental Nd:YAG laser injury.
abstract: OBJECTIVE
  To compare a macular hole from accidental Nd:YAG laser injury with idiopathic macular holes.
  
  
  METHODS
  Case report. In a 24-year-old man with accidental Nd:YAG laser injury, right eye, Amsler grid testing and optical coherence tomography were performed.
  
  
  RESULTS
  Nd:YAG laser injury was responsible for a macular hole about 700 microm in diameter. The visual acuity was 20/100. Amsler grid testing displayed a central scotoma with no surrounding distortion. Optical coherence tomography showed a defect in all retinal layers at the macula.
  
  
  CONCLUSIONS
  The scotoma caused by Nd:YAG laser injury is not surrounded by distortion; the hole is produced by the defect of all retinal layers. In contrast, idiopathic macular holes generally produce a pincushion pattern on Amsler grid testing and have no tissue loss.
authors.affiliation: Department of Ophthalmology, Osaka University Medical School, Suita, Japan. sakaguh@ccf.org
authors.forename: H
authors.initials: H
authors.lastname: Sakaguchi
authors.forename: M
authors.initials: M
authors.lastname: Ohji
authors.forename: A
authors.initials: A
authors.lastname: Kubota
authors.forename: Y
authors.initials: Y
authors.lastname: Otori
authors.forename: A
authors.initials: A
authors.lastname: Hayashi
authors.forename: S
authors.initials: S
authors.lastname: Kusaka
authors.forename: Y
authors.initials: Y
authors.lastname: Saito
authors.forename: Y
authors.initials: Y
authors.lastname: Tano
mesh_terms: D000062:Accidents, Occupational; D000328:Adult; D003941:Diagnostic Techniques, Ophthalmological; D005131:Eye Injuries / Q000175:diagnosis* / Q000209:etiology; D006801:Humans; D007368:Interferometry; D007834:Lasers / Q000009:adverse effects*; D008027:Light; D008266:Macula Lutea / Q000293:injuries* / Q000473:pathology; D008297:Male; D009887:Ophthalmoscopy; D010781:Photography; D012167:Retinal Perforations / Q000175:diagnosis* / Q000209:etiology; D012607:Scotoma / Q000175:diagnosis* / Q000209:etiology; D013334:Students; D014054:Tomography; D014792:Visual Acuity; D058609:Visual Field Tests