| JaLCDOI | 10.18926/AMO/54591 |
|---|---|
| FullText URL | 70_5_339.pdf |
| Author | Miyata, Manabu| Nakahara, Ryuichi| Hamasaki, Ichiro| Hasebe, Satoshi| Furuse, Takashi| Ohtsuki, Hiroshi| |
| Abstract | 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. |
| Keywords | amblyopia Bangerter filter binocular vision stereopsis |
| Amo Type | Original Articles |
| Publication Title | Acta Medica Okayama |
| Published Date | 2016-10 |
| Volume | volume70 |
| Issue | issue5 |
| Publisher | Okayama University Medical School |
| Start Page | 339 |
| End Page | 344 |
| ISSN | 0386-300X |
| NCID | AA00508441 |
| Content Type | Journal Article |
| language | English |
| Copyright Holders | CopyrightⒸ 2016 by Okayama University Medical School |
| File Version | publisher |
| Refereed | True |
| PubMed ID | 27777425 |
| Web of Science KeyUT | 000388098700002 |
| JaLCDOI | 10.18926/AMO/54811 |
|---|---|
| FullText URL | 70_6_477.pdf |
| Author | Nishida, Keiichiro| Machida, Takahiro| Horita, Masahiro| Hashizume, Kenzo| Nakahara, Ryuichi| Nasu, Yoshihisa| Ohashi, Hideki| Saiga, Kenta| Ozaki, Toshifumi| |
| Abstract | The metatarsophalangeal (MTP) joints are often and predominantly affected in rheumatoid arthritis. The aim of the current study was to describe surgical techniques of shortening oblique osteotomy for lesser metatarsal bone with screw fixation at the osteotomy site, and to investigate the short-term clinical outcomes of our procedure. Twenty-seven feet (78 toes) of 24 RA patients underwent the shortening oblique osteotomy for the correction of deformity at the lesser MTP joints. The average Japanese Society of Surgery of the Foot (JSSF) standard rating system for the RA foot and ankle scale improved significantly from 59.6 points preoperatively to 88.3 points postoperatively (p＜0.001). Twenty-four feet (89 ) were free from metatarsalgia and symptomatic callosities at the lesser MTP joint after surgery. Our present findings showed satisfactory early clinical outcomes of the shortening oblique osteotomy of the metatarsal bone with screw fixation for RA forefoot. |
| Keywords | shortening oblique osteotomy rheumatoid arthritis forefoot screw fixation |
| Amo Type | Original Article |
| Publication Title | Acta Medica Okayama |
| Published Date | 2016-12 |
| Volume | volume70 |
| Issue | issue6 |
| Publisher | Okayama University Medical School |
| Start Page | 477 |
| End Page | 483 |
| ISSN | 0386-300X |
| NCID | AA00508441 |
| Content Type | Journal Article |
| language | English |
| Copyright Holders | CopyrightⒸ 2016 by Okayama University Medical School |
| File Version | publisher |
| Refereed | True |
| PubMed ID | 28003673 |
| Author | Nishida, Keiichiro| Hashizume, Kenzo| Ozawa, Masatsugu| Takeshita, Ayumu| Kaneda, Daisuke| Nakahara, Ryuichi| Nasu, Yoshihisa| Shimamura, Yasunori| Inoue, Hajime| Ozaki, Toshifumi| |
|---|---|
| Published Date | 2017-02 |
| Publication Title | Acta Medica Okayama |
| Volume | volume71 |
| Issue | issue1 |
| Content Type | Journal Article |
| JaLCDOI | 10.18926/AMO/54824 |
| Title Alternative | The history of artificial intelligence |
|---|---|
| FullText URL | 132_144.pdf |
| Author | Nakahara, Ryuuichi| |
| Keywords | 人工知能 ニューラルネットワーク 歴史 |
| Publication Title | Journal of Okayama Medical Association |
| Published Date | 2020-12-01 |
| Volume | volume132 |
| Issue | issue3 |
| Start Page | 144 |
| End Page | 147 |
| ISSN | 0030-1558 |
| Related Url | isVersionOfhttps://doi.org/10.4044/joma.132.144 |
| language | Japanese |
| Copyright Holders | Copyright (c) 2020 岡山医学会 |
| File Version | publisher |
| DOI | 10.4044/joma.132.144 |
| NAID | 130007950571 |
| Title Alternative | Artificial intelligence and orthopaedics |
|---|---|
| FullText URL | 133_58.pdf |
| Author | Nakahara, Ryuuichi| |
| Keywords | 人工知能 整形外科 骨折AI研究 |
| Publication Title | Journal of Okayama Medical Association |
| Published Date | 2021-04-01 |
| Volume | volume133 |
| Issue | issue1 |
| Start Page | 58 |
| End Page | 61 |
| ISSN | 0030-1558 |
| Related Url | isVersionOf https://doi.org/10.4044/joma.133.58 |
| language | Japanese |
| Copyright Holders | Copyright (c) 2021 岡山医学会 |
| File Version | publisher |
| DOI | 10.4044/joma.133.58 |
| NAID | 130008034823 |
