Jeremy C K Tan, Jithin Yohannan, Pradeep Y Ramulu, Michael Kalloniatis, David P Crabb, Jonathan Crowston, Jack Phu
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引用次数: 0
摘要
瑞典交互式阈值算法(SITA)是汉弗莱视野分析仪(Humphrey Field Analyser)上使用的主要测量采集算法,汉弗莱视野分析仪是全球最常用的视野(VF)评估仪器。我们比较了目前可用的三种 SITA 算法--SITA 标准(SS)、快速(SF)和更快(SFR)的灵敏度输出和可靠性参数,重点是新发布的 SFR 和 24-2C 测试网格。SFR 显示出与 SS 和 SF 相似的灵敏度输出,但在视力损失更严重的眼睛中可能无法与 SS 互换。对 VF 可靠性影响最大的可靠性指标是假阳性水平,尽管推荐的 15%假阳性临界值可能不适合作为判断测试是否可靠的阈值,而应纳入 SFR 中使用。最后,24-2C 网格可用于标记中心 VF 缺陷集群的存在,而 10-2 网格可用于更全面地描述中心场缺陷的特征。我们还讨论了在临床实践中提高检测频率的策略。
Visual field testing in glaucoma using the Swedish Interactive Thresholding Algorithm (SITA).
The Swedish Interactive Thresholding Algorithm (SITA) is the main measurement acquisition algorithm used on the Humphrey Field Analyser, the most commonly used instrument for visual field (VF) assessment worldwide. We compare the sensitivity outputs and reliability parameters of the three currently available SITA algorithms-SITA Standard (SS), Fast (SF), and Faster (SFR), with a focus on the newly released SFR and the 24-2C test grid. SFR displays similar sensitivity outputs to SS and SF, but may not be interchangeable with SS in eyes with more severe VF loss. The reliability metric with the greatest impact on VF reliability is the level of false positives, although the recommended 15 % false positive cut off may be inappropriate as a threshold for judging whether a test is reliable and should be included for use in SFR. Finally, the 24-2C grid may be useful in flagging the presence of a clustered central VF defect, while the 10-2 grid can be used to more comprehensively characterize central field defects. We also discuss strategies to improve testing frequency in clinical practice.
期刊介绍:
Survey of Ophthalmology is a clinically oriented review journal designed to keep ophthalmologists up to date. Comprehensive major review articles, written by experts and stringently refereed, integrate the literature on subjects selected for their clinical importance. Survey also includes feature articles, section reviews, book reviews, and abstracts.