GLAUCOMA HEMIFIELD TEST - AUTOMATED VISUAL-FIELD EVALUATION
GLAUCOMA HEMIFIELD TEST - AUTOMATED VISUAL-FIELD EVALUATION
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DOI：
10.1001/archopht.1992.01080180084033
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发表时间：
1992-06-01
影响因子：
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通讯作者：
HEIJL, A
中科院分区：
文献类型：
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作者：
ASMAN, P;HEIJL, A
我们已经开发了一种算法，青光眼半视野测试（GHT），用于自动评价青光眼的单静态阈值视野测试结果。GHT使用经验确定的Humphrey视野分析仪Statpac概率图中上下差异的正态性极限来检测局部视野丧失。它还被构造成检测围绕水平子午线对称的场损失。在基于视网膜神经纤维层的正常解剖结构的五对相应的扇区中进行分析。在视野的最敏感部分中与年龄校正的正常阈值的偏差用于检测敏感度的一般降低或异常高的敏感度。GHT提供以纯文本形式打印在视野图上的简要视野评估。本文的目的是描述的分析程序的基本原理，并提供临床实例。
We have developed an algorithm, the Glaucoma Hemifield Test (GHT), for automated evaluation of single static threshold visual field test results in glaucoma. The GHT uses empirically determined limits of normality for up-down differences in the Statpac probability maps of the Humphrey Field Analyzer to detect localized visual field loss. It is also constructed to detect field loss that is symmetric around the horizontal meridian. Analysis is done in five corresponding pairs of sectors that are based on the normal anatomy of the retinal nerve fiber layer. Deviations from the age-corrected normal threshold in the most sensitive portions of the visual field are used to detect general reductions of sensitivity or abnormally high sensitivities. The GHT provides brief visual field evaluations printed on the field chart as plain text. The aim of this article is to describe the fundamentals of the analysis program and to provide clinical examples.