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題名:AN EVALUATION OF DOT VISUAL ACUITY CARDS     (12點)
點狀視力卡之評估
著者:Shiow-Wen Liou(劉秀雯) ;Ji-Men Chu(朱智盟)
出版地區:台灣
出版城市:台北市
學科:醫學綜合
關鍵字:Dot Visual Acuity Card ; Near Visual Acuity test ; correlation coefficient
刊名:中華民國眼科醫學會雜誌
卷期:40卷2期(2001.6)
頁碼:119-124
語言:英語
摘要: 中文摘要PDF ; 英文摘要PDF

目的:弱視之治療愈早愈好,但兒童對視力表之瞭解配合卻很難在三歲以前達成,點狀視力卡(DVA)可測量幼兒的視力,本文評估其實用性並建立臨床使用常模。 方法:第一族群:選擇142位年齡7到39歲的病人(284隻眼)來做點狀視力卡檢查(DVA)及近視力(NVA)檢查,以評估DVA是否可靠,另外再選擇101位2到6歲的小朋友(202隻眼)?第二族群,檢查其DVA及NVA,看那一種檢查小朋友較能瞭解。 結果:在第一族群之研究中,發現NVA與DVA之相關係數很高(7到12歲?0837,13到39歲?0.924),而在第二族群中發現DVA比NVA可能成功地被檢查出來(2到3歲者,52.6%:2.6%;3到4歲者,86.4%:71.4%;至於,4-6歲者兩種檢查皆可全數通過)。 結論:由以上之研究得知,DVA是一個可靠且較容易查出幼兒視力的一種檢查方法,對早期診斷視力不良有極大之助益,值得推薦。
Purpose: We present two studies to evaluate the reliability of dot visual acuity card testing and obtain baseline data of its clinical use. Methods: Studies Ⅰand Ⅱ, conducted from October 1997 to July 1998, respectively included 142 patients (284 eyes) aged 7 to 39 years and 101 patients (202 eyes) aged 2 to 6 years. The visual acuity of these subjects was measured by the dot visual acuity card test (DVA) and near visual acuity test (NVA). In study Ⅰ, the subjects were divided into two groups from 7-12 y/o and from 13-39 y/o. In study Ⅱ, the children were divided into 3 groups from 2-3 y/o, 3-4 y/o, and 4-6 y/o. We used linear regression analysis to evaluate the reliability and success rate of DVA in comparison to NVA. Results: In study Ⅰ, the correlation coefficient (R value) between NVA and DVA in the school-age group (7-12 y/o, 168 eyes) was 0.837; the R value between NVA and DVA in the adult age group (13-39y/o, 116 eyes) was 0.924. In study Ⅱ, the success rate of DVA was 52.6% (40/76) in the "very young age group" (2-3 y/o), compared to 2.6% (2/76) with the NVA test. In the "young age group" (3-4 y/o), the success rate of DVA increased to 86.4% (48/56), compared to 71.4% for the NVA test. All children in the "kindergarten age group" (4-6y/o) successfully took both tests. Conclusions: Since DVA and NVA were highly correlated and the success rate of DVA was much higher than NVA, the DVA test provided a more reliable method for evaluating visual acuity in preschool children than the standard NVA test.


    

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
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