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ID 54591
JaLCDOI
フルテキストURL
Thumnail 70_5_339.pdf 2.13 MB
著者
Miyata, Manabu Department of Ophthalmology and Visual Sciences, Kyoto University Graduate School of Medicine
Nakahara, Ryuichi Departments of Orthopedic Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences
Hamasaki, Ichiro Departments of Ophthalmology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences
Hasebe, Satoshi Department of Ophthalmology 2, Kawasaki Hospital, Kawasaki Medical School
Furuse, Takashi Department of Ophthalmology 2, Kawasaki Hospital, Kawasaki Medical School
Ohtsuki, Hiroshi Okayama Saiseikai General Hospital
抄録
Although a 0.3 Bangerter filter, which reduces visual acuity, is frequently used for treating moderate amblyopia, the effects on gross stereopsis are not well known. This study quantitatively evaluated whether gross stereopsis is degraded by a Bangerter filter. Seven healthy subjects (median age: 29 years) participated in this psychophysical study. Targets with crossed disparities of 1°, 2°, 3°, 4°, and 5° were randomly presented on a three-dimensional television display. The subjects indicated the point at which the targets popped out from the television screen (matching method). The distance from the screen to the point was defined as the degree of stereopsis. This experiment was performed with and without a 0.3 Bangerter filter. The corrected monocular visual acuities were decreased to about 20/63 by the filter in all subjects. No significant difference was observed for any of the disparities (1°-5°), between the degree of stereopsis visualized with and without filters for either the dominant or the non-dominant eye. The degree of stereopsis was not degraded by the reduced visual acuity induced by the use of 0.3 Bangerter filters. In this regard, the use of 0.3 Bangerter filters may be considered safer than occlusion eye patches for the patients with normal binocular vision.
キーワード
amblyopia
Bangerter filter
binocular vision
stereopsis
Amo Type
Original Articles
発行日
2016-10
出版物タイトル
Acta Medica Okayama
70巻
5号
出版者
Okayama University Medical School
開始ページ
339
終了ページ
344
ISSN
0386-300X
NCID
AA00508441
資料タイプ
学術雑誌論文
言語
English
著作権者
CopyrightⒸ 2016 by Okayama University Medical School
論文のバージョン
publisher
査読
有り
PubMed ID
Web of Sience KeyUT