Department of Clinical Sciences Malmö, Ophthalmology, Lund University and Skåne University Hospital Malmö, Malmö, Sweden.
Carl Zeiss Meditec Inc., Dublin, California, USA.
Am J Ophthalmol. 2019 Feb;198:154-165. doi: 10.1016/j.ajo.2018.10.010. Epub 2018 Oct 16.
To describe a new time-saving threshold visual field-testing strategy-Swedish Interactive Thresholding Algorithm (SITA) Faster, which is intended to replace SITA Fast-and to report on a clinical evaluation of this new strategy.
Description and validity analysis for modifications applied to SITA Fast.
Five centers tested 1 eye of each of 126 glaucoma and glaucoma suspect patients with SITA Faster, SITA Fast, and SITA Standard at each of 2 visits. Outcomes included test time, mean deviation, and the visual field index (VFI), significant test points in probability maps, and intertest threshold variability.
Mean (standard deviation) test times were 171.9 (45.3) seconds for SITA Faster, 247.0 (56.7) for SITA Fast, and 369.5 (64.5) for SITA Standard (P < .001). SITA Faster test times averaged 30.4 % shorter than SITA Fast and 53.5 % shorter than SITA Standard. Mean deviation was similar among all 3 tests.VFI did not differ between SITA Fast and SITA Faster tests, mean difference 0%, but VFI values were 1.2% lower with SITA Standard compared to both SITA Fast (P = .007) and SITA Faster (P = .002). A similar trend was seen with a slightly higher number of significant test points with SITA Standard than with SITA Fast and SITA Faster. All 3 tests had similar test-retest variability over the entire range of threshold values.
SITA Faster saved considerable test time. SITA Faster and SITA Fast gave almost identical results. There were small differences between SITA Faster and SITA Standard, of the same character as previously shown for SITA Fast vs SITA Standard.
描述一种新的节省时间的阈视野测试策略——瑞典交互阈值算法（SITA）更快，并报告该新策略的临床评估结果。
对 SITA Fast 应用的修改进行描述和有效性分析。
5 个中心在 2 次就诊时，对 126 例青光眼和疑似青光眼患者的每只眼分别用 SITA Faster、SITA Fast 和 SITA Standard 进行测试。结果包括测试时间、平均偏差和视野指数（VFI）、概率图中的显著测试点以及测试间阈值变异性。
SITA Faster 的平均（标准差）测试时间为 171.9（45.3）秒，SITA Fast 为 247.0（56.7）秒，SITA Standard 为 369.5（64.5）秒（P<.001）。SITA Faster 的测试时间平均比 SITA Fast 缩短 30.4%，比 SITA Standard 缩短 53.5%。3 种测试的平均偏差相似。SITA Fast 和 SITA Faster 之间的 VFI 没有差异，平均差异为 0%，但与 SITA Fast（P=.007）和 SITA Faster（P=.002）相比，SITA Standard 的 VFI 值低 1.2%。在稍微更多的显著测试点方面，SITA Standard 与 SITA Fast 和 SITA Faster 相比也有类似的趋势。在整个阈值范围内，3 种测试的测试-重测变异性相似。
SITA Faster 节省了大量的测试时间。SITA Faster 和 SITA Fast 的结果几乎相同。SITA Faster 与 SITA Standard 之间存在微小差异，与 SITA Fast 与 SITA Standard 之间的差异特征相同。
