MISC

2003年7月

Rod-driven focal macular electroretinogram

JAPANESE JOURNAL OF OPHTHALMOLOGY
  • T Choshi
  • ,
  • CS Matsumoto
  • ,
  • K Nakatsuka

47
4
開始ページ
356
終了ページ
361
記述言語
英語
掲載種別
DOI
10.1016/S0021-5155(03)00073-X
出版者・発行元
ELSEVIER SCIENCE INC

Purpose: To determine the stimulus conditions required to elicit rod-driven, focal macular electroretinograms (rod FMERGs).
Methods: A blue (lambda(max) = 470 nm) stimulus, 5degrees in size, was imaged at a luminance of 1.5 cd/m(2) on different regions of the human retina. Electroretinograms (ERGS) elicited by this stimulus were recorded from the light- and dark-adapted retina of four subjects without any ophthalmological abnormalities. A subject with cone dystrophy was also tested by this method.
Results: Stimulus luminance : 1.5 cd/m(2) did not elicit a response when it was imaged on the optic disc, but higher intensities elicited a small b-wave from stray light. When this stimulus was imaged on the macular area or the 15degrees temporal retina, an ERG was elicited that had the shape of the full-field scotopic ERG. This stimulus with a luminance of 1.5 cd/m(2) did not elicit a response from stimulation of the macular area of a light-adapted retina but elicited a slow-rising positive b-wave after 30 minutes of dark adaptation. In a subject with cone dystrophy, focal rod response was elicited from the macula, despite no response under photopic conditions.
Conclusion: We conclude that this stimulus will elicit a response that is derived exclusively from rods and is a focal response with no contribution from stray light. (C) 2003 Japanese Ophthalmological Society.

リンク情報
DOI
https://doi.org/10.1016/S0021-5155(03)00073-X
CiNii Articles
http://ci.nii.ac.jp/naid/10013678466
PubMed
https://www.ncbi.nlm.nih.gov/pubmed/12842203
Web of Science
https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000184085700006&DestApp=WOS_CPL
ID情報
  • DOI : 10.1016/S0021-5155(03)00073-X
  • ISSN : 0021-5155
  • CiNii Articles ID : 10013678466
  • PubMed ID : 12842203
  • Web of Science ID : WOS:000184085700006

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