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題名:PRELIMINARY RESULTS OF CHANGES IN REFRACTION AND CORNEAL CURVATURE CAUSED BY +Gz ACCELERA TION IN PATIENTS AFTER ORTHOKERATOLOGY     (16點)
經角膜塑型術後之配戴者在經高G力之後屈光及角膜弧度的變化:初報
著者:Jy-Been Liang(梁知本) ;Jiann-Tomg Cheng(陳建同) ;Chun-Cheng Liu(劉峻正)
出版地區:台灣
出版城市:台北市
學科:醫學綜合
關鍵字:corneal curvature ; corneal topography ; Gz acceleration ; human centrifuge
刊名:中華民國眼科醫學會雜誌
卷期:49卷1期(2010.3)
頁碼:17-24
語言:英語
摘要:
目的:探討在施行角膜塑型術之後,在經高G 力離心下之視力、屈光度及角膜弧度的改變。 方法:5 位年齡平均為25.3 歲之年輕男性在配戴 夜戴型角膜塑型鏡片2 週後接受人體離心機之訓 練,分別記錄其在離心前與後1 分鐘及10 分鐘後之 視力、屈光度及角膜弧度之改變,同時與對照組比較 差異性。 結果:實驗組的視力,在經高a e 力後均維持穩 定,屈光度在離心1 分鐘有增加但10 分鐘後復原; 在離心後1 分鐘、10 分鐘均有角膜厚度變薄及前角 膜屈度增加現象。在對照組方面,屈光度在離心1 分 鐘時有顯著減少但在離心後10 分鐘恢復,角膜厚度 在離心後1 分鐘及10 分鐘後均減少;同時在前角膜 屈度方面在離心後1 分鐘有增加,離心後10 分鐘回 復。 結論:視力在離心後角膜弧度及屈光方面有改變 下仍維持種定,屈光度與前角膜弧度在實驗及控制組 的差別,可能與角膜塑型鏡片造成角膜中心變平有 關
Purpose: The aim of this study was to investigate the changes in visual acuity, refraction, and corneal curvature caused by sustained +Gz acceleration of patients in a human centrifug~ after overnight orthokeratology. Methods: Five healthy men training to be aviation doctors, aged 25一26 years (mean = 25.3 years), received overnight orthokeratology for two weeks. The human centrifuge at the Aviation Physiology Research Laboratory in Tainan, Taiwan, was used to expose the subjects to various acceleration profiles. Each subject experienced three centrifuge runs. Visual acuity, refraction, and corneal topography were measured before, and 1 min and 10 min after acceleration. We compared the study group findings with those of a control group of 13 subjects who had not undergone orthokeratology but experienced the same acceleration procedure. Results: In the orthokeratology group, nine eyes of five subjects completed the study. One eye was excluded because of keratitis. Visual acuity remained stable after human centrifugation. Refraction increased significantly at 1 min, but recovered at 10 min after centrifugation. There was a significant decrease in corneal thickness and a significant increase in anterior curvature at 1 min and 10 min after centrifugation. In the control group, best-corrected visual acuity was increased at 1 min and 10 min after centrifugation. Myopic shift was noted significantly at 1 min, but increased at 10 min after centrifugation. There was a significant decrease in corneal thickness and a significant increase in anterior curvature, at 1 min but this recovered 10 min after centrifugation. Conclusion: Visual acuity is stable, although some corneal topographic and refractive parameters change after centrifugation. Differences in the changes in refraction and anterior curvature between the orthokeratology and control groups may be due to the oblate shape of the cornea produced by the orthokeratology lens.


    

本卷期目次
中華民國眼科醫學會雜誌 49卷1期 (2010.3)
評估總額預算下眼科醫師做為醫療供給者的行為變化──從競爭的公眾悲劇轉為合作的納許平衡/ 張朝凱王一中
AN ATYPICAL CAUSE OF CORNEAL EPITHELIAL DEFECT──ONE CASE REPORT/ Yi-Ching HsiehYi-Yu TsaiChun-Chi Chiang
IS ACCOMMODATIVE ESOTROPIA MASKED?──A CASE REPORT/ Pei-Jen ChenShu-Wen Chang
小眼症患者施行白內障手術之經驗/ 陳彥圭賴盈州陳勇仁
以冷凍療法及經瞳孔熱療法治療一位von Hipple-Lindau疾病患者的視網膜大血管瘤/ 歐宗和陳勇仁
PRELIMINARY RESULTS OF CHANGES IN REFRACTION AND CORNEAL CURVATURE CAUSED BY +Gz ACCELERA TION IN PATIENTS AFTER ORTHOKERATOLOGY/ Jy-Been LiangJiann-Tomg ChengChun-Cheng Liu
2007年中華民國眼科醫學會會員白內障及屈光矯治醫療執行概況普查/ 簡克鴻梁章敏周雨青戴明正高森永陳建同
CYTOMEGALOVIRUS RETINITIS IN A PATIENT WITH IDIOPATHIC THROMBOCYTOPENIC PURPURA ON ORAL PREDNISOLONE TREATMENT: A CASE REPORT/ Yih Chun LinMing Shan HeRong Kung Tsai
CYTOMEGALOVIRUS AS A CAUSE OF CORNEAL ENDOTHELIITIS IN AN IMMUNOCOMPETENT PATIENT/ Wan-Ju ChenSung-Huei TsengFu-Chin HuangSheng-Min HsuYing-Ting Chen
IPSILATERAL ROTATIONAL AUTOKERATOPLASTY FOR CENTRAL CORNEA OPACITY──A CASE REPORT/ Shih-Yun LeeKo-Hua ChenShui-Mei Lee
CLINICAL EVALUATION IN A PATIENT WITH RETINITIS PUNCTATA ALBESCENS/ Pey-Yi MaiMuh-Shy Chen
UNILATERAL PURTSCHER-LIKE RETINOPATHY ASSOCIATED WITH POSSIBLE SYSTEMIC LUPUS ERYTHEMATOSUS──A CASE REPORT/ Chun-En TangCheng-Kuo Cheng
REVERSIBLE AMANTADINE-INDUCED CORNEAL EDEMA──A CASE REPORT/ Ju-Wen YangChing-His HsiaoChi-Chin SunDavid Hui-Kang MaY.F. Chen
MYOPIC FOVEOSCHISIS RESOLUTION WITHOUT VITRECTOMY: SPONTANEOUS RESOLUTION OR THROUGH PNEUMOPEXY/ Hun-Ju YuPei-chang WuHsi-Kung Kuo
CLINICAL FEATURES OF KERA TOUVEITIS ASSOCIATED WITH CYTOMEGALOVIRUS INFECTION/ Peng-Tai TienYi-Yu TsaiTsai-Hsiu LinChun-Chi Chiang
經濟評估在新生血管性老年性黃斑部病變新式治療之應用/ 陳麗如王一中尤之浩楊銘欽
ACQUIRED OCULAR TOXOPLASMOSIS IN A DERMATOMYOSITIS PATIENT,WITH IMMUNOSUPPRESSANT THERAPY──A CASE REPORT/ Pao-Ju ChenShen-Pin ChouSan-Ni Chen
CORNEAL MOSQUITO INJURY──A CASE REPORT/ Wei-Yang LuYing-Cheng ShenHin-Yeung Choi
HYPOTONY MACULOPATHY AFTER 23-GAUGE TRANSCONJUNCTIVAL SUTURELESS VITRECTOMY: A CASE REPORT/ Hsiao-Lei LeiJane Zea-Chin KuoKo-Jen YangWan-Chen KuChi-Chin SunLan-Hsin ChuangLing Yeung
 
   
 
   

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