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1
題名:CONTRAST SENSITIVITY CHANGES IN AMBLYOPIA PATIENTS     (14點)
弱視病患之對比敏感度變化
著者:Shiow-Wen Liou(劉秀雯) ;Chun-Chen Chen(陳純貞)
出版地區:台灣
出版城市:台北市
學科:醫學綜合
關鍵字:Contrast Sensitivity ; Spatial Frequency ; Amblyopia
刊名:中華民國眼科醫學會雜誌
卷期:40卷2期(2001.6)
頁碼:112-118
語言:英語
摘要: 中文摘要PDF ; 英文摘要PDF

由於弱視病患之視力評估及治療前後之比較皆以傳統之Landolt或Snellen視力表?主,由於前列之檢查皆?百分之百對比下的視力狀況,?瞭解真實情況下的視力障礙,本篇論文以對比敏感度測試儀來作分析。 對於不同原因的弱視病患,我們發現屈光性弱視的病患,在低空間頻率時,對比敏感度有下降的情形,除此之外,所有的弱視病患在高空間頻率對比敏感度皆下降。 至於弱視病患在治療之後,即使一般視力檢查已達20/20,但我們發現其對比敏感度仍然與正常眼有統計學上具意義的差距,此外,非弱視眼在被遮蔽一段時間之後,即使視力並未減退,對於敏感度也有降低的情形,但在停止遮蔽之後,對比敏感度會有恢復的現象,可見對比敏感度比傳統之視力檢查更能提早發現視覺系統的不良,是檢查弱視病患一項很好的檢查方法。
PURPOSE: To investigate the interrelationship of contrast sensitivity among amblyopic eyes, dominant eyes and normal eyes, and to evaluate the outcome of amblyopic treatment. METHODS: Contrast sensitivity and visual acuity were examined in 69 eyes of strabismic and/or refractive amblyopic patients (mean age: 8 yrs.) every two months to evaluate the outcome of amblyopia treatment and interrelationship between amblyopic and dominant eyes in unilateral amblyopia. An additional 100 eyes of children with corrected vision >=1.0 were selected for control groups. RESULTS: Reduced contrast sensitivity in amblyopic eyes was most evident at high spatial frequencies (SF). Decreased contrast sensitivity at low SF was also found in refractive amblyopic eyes. Contrast sensitivity function (CSF) improved significantly after treatment with occlusion and/or CAM. However, when visual acuity reached 20/20 in amblyopic eyes, there was still significant difference in CSF between normal and amblyopic eyes. CONCLUSION: Different types of amblyopia had different CSF patterns, which changed with treatment. The relationship between visual acuity and contrast sensitivity was not parallel during treatment. Beside visual acuity, CSF was also an important parameter in the treatment of amblyopia.


    

本卷期目次
中華民國眼科醫學會雜誌 40卷2期 (2001.6)
LASIK和PRK的術前評估及病人選擇/ 蔡三章
LASIK手術之術前評估/ 王一中
PRK最近的發展/ 鄭惠川
LASIK Technique for Myopia, Hyperopia and Enhancement/ 陳俊良
CONTRAST SENSITIVITY CHANGES IN AMBLYOPIA PATIENTS/ Shiow-Wen LiouChun-Chen Chen
AN EVALUATION OF DOT VISUAL ACUITY CARDS/ Shiow-Wen LiouJi-Men Chu
THE EXPERIENCE OF AHMED GLAUCOMA VALVE IMPLANTATION IN PATIENTS WITH INTRACTABLE GLAUCOMA/ Po-Liang ChenDa-Wen LuPing-I Chou
CLINICAL STUDY OF OPTIC DISC HEMORRHAGES IN PATIENTS WITH SMALL DISC/ Jen-Shang HuangHui-Chuan HsuChung-May YangShu-Fen WuMuh-Shy Chen
改良式停止和劈刀式晶體乳化術/ 吳宗典許淑娟
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LANGERHANS' CELL HISTIOCYTOSIS INVOLVING THE EYELID OF A 3-YEAR-OLD BOY/ Yunn-Ru ChenShu-Ching Shiau
視神經管症候群(Optic Canal Syndrome)/ 張雲翔周秉義
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硬皮症合併全身紅斑性狼瘡與眼底疑似色素性視網膜炎的眼睛表現--病例報告/ 郭千能郭明倫郭錫恭鄧美琴
單側柯氏症合併對側先天性視網膜血管巨大症--病例報告/ 何義文何美玲楊中美
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Waardenburg症候群--病例報告/ 蔡慶皇黃韻如林信樺蔡三章
 
   
 
   

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