JaLCDOI 10.18926/AMO/57378
フルテキストURL 73_5_463.pdf
著者 Shibata, Kiyo| Hamasaki, Ichiro| Shimizu, Takehiro| Kono, Reika| Ohtsuki, Hiroshi| Morizane, Yuki| Shiraga, Fumio|
抄録 To permit noose movement without fraying the sutures following strabismus surgery, we designed a new sliding noose, the “twist knot” and investigated its advantages and disadvantages. We measured the tensile strength required to move the twist knot in a tightly tied state (134±19 gf) and in a loosened state (21±7 gf), and that required to move the conventional sliding noose in a tightly tied state (48±14 gf), and used the Kruskal-Wallis test to compare them. A significant difference was observed among the three tensile strengths (p<0.001). The twist knot technique allowed easy sliding without the multifilament braided suture becoming frayed and a knot to be firmly fixed without slipping. However, if the 2 strings of the pole sutures exit from the sclera at 2 widely separated positions, the sliding noose may become slack. Therefore, the distance between the pole sutures should be small. The simple twist knot technique was found to be an effective approach following adjustable surgery of strabismus.
キーワード adjustable suture the new sliding noose method tensile strength strabismus surgery esotropia
Amo Type Case Report
発行日 2019-10
出版物タイトル Acta Medica Okayama
73巻
5号
出版者 Okayama University Medical School
開始ページ 463
終了ページ 468
ISSN 0386-300X
NCID AA00508441
資料タイプ 学術雑誌論文
言語 English
著作権者 CopyrightⒸ 2019 by Okayama University Medical School
論文のバージョン publisher
査読 有り
PubMed ID 31649374
Web of Sience KeyUT 000491886600013
JaLCDOI 10.18926/AMO/54591
フルテキストURL 70_5_339.pdf
著者 Miyata, Manabu| Nakahara, Ryuichi| Hamasaki, Ichiro| Hasebe, Satoshi| Furuse, Takashi| Ohtsuki, Hiroshi|
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 27777425
Web of Sience KeyUT 000388098700002
著者 Aoba, Kana| Matsuo, Toshihiko| Hamasaki, Ichiro| Hasebe, Kayoko|
発行日 2015-04-07
出版物タイトル SpringerPlus
4巻
資料タイプ 学術雑誌論文