Department of Glaucoma, Narayana Nethralaya, Hulimavu.
Department of Glaucoma, Narayana Nethralaya, Rajajinagar, Bangalore.
J Glaucoma. 2020 Sep;29(9):783-788. doi: 10.1097/IJG.0000000000001551.
To compare the visual field (VF) parameters of the new Swedish Interactive Thresholding Algorithm (SITA), SITA Faster (SFR) with that of SITA Standard (SS) on the Humphrey Field Analyzer.
Ninety-seven eyes of 97 subjects (63 glaucoma, 26 glaucoma suspects, and 8 normal eyes) underwent VF examination with SFR and SS strategies on the same day in random order. Agreement in VF parameters between SFR and SS strategies was assessed by Bland and Altman plots. In addition, some subjects underwent a second VF examination with SFR strategy to evaluate its test-retest variability.
The median test duration of SS strategy was 6 minutes 14 seconds, whereas SFR was 2 minutes 49 seconds (55% shorter, P<0.001). Median mean deviation (-7.3 vs. -7.6 dB, P=0.73) and VF index (88 vs. 88%, P=0.32) were similar between the 2 strategies, whereas pattern standard deviation was significantly higher (4.8 vs. 4.7 dB, P=0.01) with SS strategy. Overall average threshold sensitivity and Garway-Heath sector-wise threshold sensitivities were similar between the 2 strategies except for the nasal sector where SFR strategy had higher sensitivity (26 vs. 25 dB, P=0.02). Bland-Altman plots showed the mean difference in all VF parameters between the SS and SFR strategies were small (ranging from -1.0 dB for the nasal sector to -0.01 dB for superotemporal sector sensitivity). The test-retest variability of VF parameters with SFR strategy was low.
VF parameters with SFR showed good agreement with that of SS strategy. This, combined with low test-retest variability, suggests that SFR can be considered for diagnosis and monitoring of glaucoma.
比较新型瑞典交互阈值算法（SITA）中的快速模式（SFR）与 SITA 标准模式（SS）在 Humphrey 视野分析仪上的视野（VF）参数。
97 名受试者（63 名青光眼患者、26 名青光眼疑似患者和 8 名正常眼）的 97 只眼随机先后接受 SFR 和 SS 策略的 VF 检查。通过 Bland 和 Altman 图评估 SFR 和 SS 策略之间 VF 参数的一致性。此外，一些受试者接受了第二次 SFR 策略的 VF 检查，以评估其测试-重测变异性。
SS 策略的中位测试时间为 6 分 14 秒，而 SFR 为 2 分 49 秒（缩短 55%，P<0.001）。两种策略的平均缺损值（-7.3 与-7.6 dB，P=0.73）和视野指数（88 与 88%，P=0.32）相似，而模式标准差则明显更高（4.8 与 4.7 dB，P=0.01）。两种策略的总体平均阈值敏感性和加洛韦-希思扇形阈值敏感性相似，除了鼻侧扇区，SFR 策略的敏感性更高（26 与 25 dB，P=0.02）。Bland-Altman 图显示，SS 和 SFR 策略之间所有 VF 参数的平均差异较小（从鼻侧扇区的-1.0 dB 到上颞侧扇区敏感性的-0.01 dB）。SFR 策略的 VF 参数测试-重测变异性较低。
SFR 的 VF 参数与 SS 策略具有良好的一致性。这与低测试-重测变异性相结合，表明 SFR 可用于青光眼的诊断和监测。
