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Methods of measuring temporal modulation perimetry Jun Fukuhara 1 , Fumie Iuchi 1 , Eiichi Yukawa 2 , Mototsugu Saishin 2 1Department of Ophthalmology, Nara Prefectural Mimuro Hospital 2Dept of Ophthalmol, Nara Med Univ pp.683-686
Published Date 1997/4/15
DOI https://doi.org/10.11477/mf.1410905337
  • Abstract
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Temporal modulation sensitivity (TMS) was measured under direct fundus monitoring with an infrared video fundus camera. With this apparatus, it is possible to alter the intensity and modulation of stimulus spots and to measure TMS for a 50-minute flickering field in the central and peripheral retina. We evaluated four methods of TMS : method of adjustment, method of limits, up-and-down method and constant method. Both for fovea] and peripheral measurements, there was an overall trend of decreasing sensitivity for constant method, method of adjustment, up-and-down method and method of limits in the descending order. It was difficult to maintain steady fixation and attention, since it took longer time to measure TMS, particularly by the constant method. These results suggest that the bracketing method may be adapted to clinical practice for the assessment of temporal modulation perimetry.


Copyright © 1997, 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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