Integrated visual fields: a new approach to measuring the binocular field of view and visual disability
Integrated visual fields: a new approach to measuring the binocular field of view and visual disability
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DOI：
10.1007/s00417-004-0984-x
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发表时间：
2005-03-01
影响因子：
2.7
通讯作者：
Viswanathan, AC
中科院分区：
文献类型：
--
作者：
Crabb, DP;Viswanathan, AC
背景：我们发展了一种通过合并单眼视野的结果来量化中央双眼视野的方法（综合视野）。本研究旨在比较新的测量方法与双眼Esterman视野测试在识别自述视力障碍患者中的作用。方法：48例青光眼患者，当日分别记录双眼Humphrey 24-2视场和1个Esterman视场，并填写与感知视力障碍相关的二元强迫选择问卷。计算机软件将单眼视野的灵敏度值合并，生成一个综合的视野，以及< 10 dB和< 20 dB水平上缺陷数量的相关评分。采用受试者工作特征（ROC）分析比较综合视野评分和Esterman残疾评分与个体对视觉任务感知困难问题的回答。结果：ROC曲线下面积的比较显示，基于综合视野的评分（中位面积：0.79）通常优于Esterman评分（中位面积：0.70），用于对有或没有自我报告的视觉任务感知困难的患者进行分类。结论：综合视野可快速评估青光眼患者的双眼视野，无需额外的周边检查。与实际的双眼视野测试（Esterman）相比，综合视野能更好地预测青光眼患者无法执行某些视觉任务。
Background: We have developed a method of quantifying the central binocular visual field by merging results from monocular fields ( Integrated visual field). This study aims to compare the new measure with the binocular Esterman visual field test in identifying patients with self-reported visual disability. Methods: Forty-eight patients with glaucoma each recorded Humphrey 24-2 fields for both eyes and an Esterman on the same day, and each completed a binary forced-choice questionnaire relating to perceived visual disability. Computer software merged sensitivity values from monocular fields to generate an integrated visual field and a related score of the number of defects at the < 10 dB and < 20 dB level. Receiver operating characteristic ( ROC) analysis was used to compare the integrated visual field score and the Esterman disability score with individual responses to the questions on perceived difficulty with visual tasks. Results: Comparison of areas under ROC curves revealed that a score based on the integrated visual field was generally better ( median area: 0.79) than Esterman scores ( median area: 0.70) in classifying patients with or without a self-reported perceived difficulty with visual tasks. Conclusions: The integrated visual field offers a rapid assessment of a glaucoma patient's binocular visual field without extra perimetric testing. As compared to an actual binocular field test ( Esterman), the integrated visual field provides a better prediction of a glaucoma patient's perceived inability to perform certain visual tasks.