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A case of adult-onset cone-rod dystrophy with subtle fundus findings Jun Hara 1 , Hiroyuki Kondo 1 , Hideyuki Hayashi 1 , Eiichi Uchio 1 , Eriko Fujiwara 2 , Ken Hayashi 3 1Dept of Ophthalmol,Fukuoka Univ Sch of Med 2Dept of Ophthalmol,Hakujuji Hosp 3Hayashi Eye Hosp pp.1155-1158
Published Date 2009/7/15
DOI https://doi.org/10.11477/mf.1410102800
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Abstract. Purpose:To report a case of adult-onset cone-rod dystrophy without characteristic fundus findings. Case:A 51-year-old male presented with impaired visual acuity in both eyes. He had had central scotoma in both eyes 2 years before. Fundus findings were inconclusive and he had been diagnosed with optic neuropathy. Findings:Corrected visual acuity was 0.1 right and 0.06 left. Both eyes showed central scotoma. Visual acuity and field defect deteriorated during the ensuing 8 years. Electroretinogram showed decreased amplitudes for cone and rod systems. Fundus autofluorescence showed hyperfluorescent ring surrounding the fovea and hypofluorescence along the vascular arcades. These findings led to the diagnosis of cone-rod dystrophy. Conclusion:Diagnosis of cone-rod dystrophy may be difficult in adults due to lack of characteristic findings. Electrophysiological findings may be useful in the diagnosis.


Copyright © 2009, Igaku-Shoin Ltd. All rights reserved.

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電子版ISSN 1882-1308 印刷版ISSN 0370-5579 医学書院

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