Population-Based Utility of van Herick Grading for Angle-Closure Detection.
Omar A Halawa, Nazlee Zebardast, Ajay Kolli, Paul J Foster, Mingguang He, Tin Aung, David S Friedman
Ophthalmology | Published : 2021
We report the sensitivity and specificity of van Herick (VH) grading in detecting gonioscopically-defined primary angle closure suspects (PACS) among subjects screened for participation in a population-based trial in southern China. A cut-off of VH≤25% was found to have sensitivity and specificity rates of 98.2% and 25.9%, respectively. Rates were adjusted for missing gonioscopy data, resulting in a sensitivity and specificity of 92.5% and 61.5%, respectively.