Accuracy of the Welch Allyn SureSight for measurement of magnitude of astigmatism in 3- to 7-year-old children.
Accuracy of the Welch Allyn SureSight for measurement of magnitude of astigmatism in 3- to 7-year-old children.
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DOI：
10.1016/j.jaapos.2009.08.013
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发表时间：
2009-10
期刊：
影响因子：
1.6
通讯作者：
Garvey, Katherine A.
中科院分区：
文献类型：
--
作者：
Harvey, Erin M.;Dobson, Velma;Miller, Joseph M.;Clifford-Donaldson, Candice E.;Green, Tina K.;Messer, Dawn H.;Garvey, Katherine A.
在高度散光患病率较高的美国土著人群儿童中，评价Welch Allyn SureSight在非睫状肌麻痹散光测量中与睫状肌麻痹Retinomax K+自动验光仪散光测量相比的准确性。报告了825例3至7岁儿童的数据，无眼部异常。每名儿童均接受了右眼散光的Retinomax K+睫状肌麻痹测量，置信度≥8，并尝试3次获得右眼的SureSight测量。SureSight测量成功率在不同年龄或测量置信度之间无显著差异（<6 vs ≥6）。96%的儿童至少有1次测量（任何置信度），89%的儿童至少有1次测量的置信度在制造商的推荐值（≥6）。总体而言，SureSight倾向于高估散光。如果SureSight测量具有任何屈光值（0.00 D至3.00 D），则可能存在2.00 D或更小的散光。如果SureSight显示散光超出仪器的屈光度范围（>3.00 D），Retinomax K+测量表明157例中有136例（86.6%）存在>2.00 D的散光。在SureSight无法提供阅读的合作儿童中，34名儿童中有32名（94%）散光>3.00 D。SureSight不提供散光量的准确定量测量。然而，它确实可以将散光量准确分类为≤2.00 D、>2.00 D或>3.00 D，并且在幼儿中具有较高的测量成功率。
To evaluate the accuracy of the Welch Allyn SureSight in noncycloplegic measurements of astigmatism as compared to cycloplegic Retinomax K+ autorefractor measurements of astigmatism in children from a Native American population with a high prevalence of high astigmatism. Data are reported for 825 3- to 7-year-old children with no ocular abnormalities. Each child had a Retinomax K+ cycloplegic measurement of right eye astigmatism with a confidence rating ≥8 and 3 attempts to obtain a SureSight measurement on the right eye. SureSight measurement success rates did not differ significantly across age or measurement confidence rating (<6 vs ≥6). Ninety-six percent of children had at least 1 measurement (any confidence), and 89% had at least 1 measurement with confidence at the manufacturer's recommended value (≥6). Overall, the SureSight tended to overestimate astigmatism. If the SureSight measurement had any dioptric value (0.00 D to 3.00 D), astigmatism of 2.00 D or less was likely to be present. If the SureSight showed astigmatism beyond the instrument's dioptric range (>3.00 D), Retinomax K+ measurements indicated that >2.00 D of astigmatism was present in 136 of 157 (86.6%). In cooperative children for whom the SureSight would not give a reading, 32 of 34 (94%) had >3.00 D of astigmatism. The SureSight does not provide an accurate, quantitative measure of amount of astigmatism. However, it does allow accurate categorization of amount of astigmatism as ≤2.00 D, >2.00 D, or >3.00 D, and it has high measurement success rate in young children.
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