Optical coherence tomography of the anterior segment (AS-OCT) strongly correlates with gonioscopy in detecting narrow angles, making it a valuable screening tool in busy clinics, though gonioscopy remains the gold standard for confirmation and management, according to a study.
In a cross-sectional study, researchers examined 212 eyes of patients from an outpatient department (OPD). Eyes with narrow angles identified by Van Herick grading (≤2) were confirmed and classified using the Shaffer gonioscopy system. These eyes were further assessed with AS-OCT, and angle measurements were compared between AS-OCT and gonioscopy to evaluate correlation.
Of the 212 eyes with narrow angles confirmed by gonioscopy, 206 eyes (97.2%) also exhibited narrow angles on AS-OCT, while 6 eyes (2.8%) showed open angles. There was a significant correlation between the methods P < 0.001).
Reference
Lune A, Prabhudesai A. A Comparative Study of Anterior Segment Optical Coherence Tomography and Gonioscopy in Detection of Narrow, Occludable Angles. Cureus. 2024;16(9):e69879. doi: 10.7759/cureus.69879. PMID: 39439605; PMCID: PMC11494031.
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