Singman Eric L, Matta Noelle S, Silbert David I, Tian Jin
Binocul Vis Strabolog Q Simms Romano. 2013;28(2):78-83.
Distance stereo acuity has been shown to be useful in monitoring conditions such as control of intermittent strabismus. The Frisby Davis distance (FD2) stereotest has been shown to be reliable and is felt to be the gold standard in England. The device however is not widely available in the United States or Canada and is not automated. This study compares the Innova distance stereoacuity test with the Frisby Davis distance (FD2) stereotest.
Twenty-seven patients with normal acuity and a normal ophthalmology exam were evaluated. Prior to dilation all patients had an Innova distance stereoacuity test and FD2 test. Both the Innova distance stereoacuity test and the FD2 test were performed at ten feet. The results of the tests were compared using Bland-Altman plot analysis.
The INNOVA system tended to underestimate distance stereoacuity by approximately 30 arc seconds compared to the FD2 test. If the INNOVA results were corrected by this amount, then there was a good correlation between the INNOVA results and the FD2.
The Innova distance stereoacuity test underestimates stereopsis by approximately 30 arc seconds but does so with sufficient consistency that it may serve as an acceptable method of measuring distance stereoacuity. This study is the first that has correlated the Innova stereoacuity test with the FD2.
远距离立体视敏度已被证明在监测诸如间歇性斜视控制等情况时很有用。弗里斯比·戴维斯远距离（FD2）立体视测试已被证明是可靠的，并且在英国被视为金标准。然而，该设备在美国或加拿大并不广泛可用，且不是自动化的。本研究将英诺瓦远距离立体视敏度测试与弗里斯比·戴维斯远距离（FD2）立体视测试进行比较。
对27名视力正常且眼科检查正常的患者进行评估。在散瞳前，所有患者均进行了英诺瓦远距离立体视敏度测试和FD2测试。英诺瓦远距离立体视敏度测试和FD2测试均在10英尺处进行。使用布兰德 - 奥特曼图分析比较测试结果。
与FD2测试相比，英诺瓦系统倾向于将远距离立体视敏度低估约30角秒。如果将英诺瓦的结果按此量进行校正，那么英诺瓦的结果与FD2之间存在良好的相关性。
英诺瓦远距离立体视敏度测试将立体视低估约30角秒，但具有足够的一致性，因此它可以作为测量远距离立体视敏度的一种可接受方法。本研究是首次将英诺瓦立体视敏度测试与FD2进行相关性研究。
