Thomas R, George T, Braganza A, Muliyil J
Schell Eye Hospital, Department of Ophthalmology, Christian Medical College, Vellore, India.
Aust N Z J Ophthalmol. 1996 Aug;24(3):251-6. doi: 10.1111/j.1442-9071.1996.tb01588.x.
To determine the reliability and validity of the flashlight test and van Herick's test in detecting occludable anterior chamber angles.
The flashlight test, van Herick's test and gonioscopy were performed independently by two observers on 96 consecutive new patients in our outpatient clinic. Interobserver agreement was determined using the weighted Kappa statistic. Using the glaucoma specialist's assessment of occludability of the angle (assessed by gonioscopy) as a gold standard, the sensitivities and specificities of the two tests were calculated.
All three tests showed good agreement (Kappa more than 0.75). The sensitivity and specificity on the flashlight test were 45.5% and 82.7% respectively. For the van Herick's test they were 61.9% and 89.3%.
The flashlight test and van Herick's test are of limited use as screening tests for occludable angles.
确定手电筒试验和范赫里克试验在检测可闭角型前房角方面的可靠性和有效性。
两名观察者对门诊连续96例新患者独立进行手电筒试验、范赫里克试验和前房角镜检查。采用加权Kappa统计量确定观察者间的一致性。以青光眼专家通过前房角镜检查评估的房角可闭性作为金标准，计算两种试验的敏感性和特异性。
三项试验均显示出良好的一致性（Kappa大于0.75）。手电筒试验的敏感性和特异性分别为45.5%和82.7%。范赫里克试验的敏感性和特异性分别为61.9%和89.3%。
手电筒试验和范赫里克试验作为可闭角型房角的筛查试验，用途有限。
