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Case Reports Comparative Study
Amsler grid examination and optical coherence tomography of a macular hole caused by accidental Nd:YAG laser injury.
- H Sakaguchi, M Ohji, A Kubota, Y Otori, A Hayashi, S Kusaka, Y Saito, and Y Tano.
- Department of Ophthalmology, Osaka University Medical School, Suita, Japan. sakaguh@ccf.org
- Am. J. Ophthalmol. 2000 Sep 1; 130 (3): 355-6.
PurposeTo compare a macular hole from accidental Nd:YAG laser injury with idiopathic macular holes.MethodsCase report. In a 24-year-old man with accidental Nd:YAG laser injury, right eye, Amsler grid testing and optical coherence tomography were performed.ResultsNd: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.ConclusionThe 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.
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