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Date Published: 25/01/2025
Abstract Views: 174
Views PDF: 89
DOI: 10.58490/ctump.2025i83.3155
Issue
No. 83 (2025)
Section
Article
How to Cite
Le, T. M. H., Nguyen, C. K., & Au, T. H. (2025). APPLICATION OF “VAN HERICK PLUS” WITH IMAGEJ SOFTWARE FOR THE ASSESSMENT OF ANTERIOR CHAMBER ANGLE. Cantho Journal of Medicine and Pharmacy, 83, 31-36. https://doi.org/10.58490/ctump.2025i83.3155

APPLICATION OF “VAN HERICK PLUS” WITH IMAGEJ SOFTWARE FOR THE ASSESSMENT OF ANTERIOR CHAMBER ANGLE

Thai Minh Hieu Le1, , Cong Kiet Nguyen1, Tam Hao Au2
1 University of Medicine and Pharmacy at Ho Chi Minh City
2 Ho Chi Minh Eye Hospital

Main Article Content

Abstract

Background: An evaluation of the Van Herick Plus technique, a method for assessing all 4 quadrants of the anterior chamber using only a slit lamp, which is suitable for primary healthcare facilities. Objective: To evaluate the reliability of “Van Herick Plus” technique combined with ImageJ software in estimating all 4 quadrants of the anterior chamber compared with anterior segment OCT. Materials and methods: A cross-sectional study of 45 patients above 40 years old was performed to classify anterior chamber angle using Van Herick Plus. Additionally, the iridocorneal angle (ICA) was measured in the upper and lower quadrants using software ImageJ. These patients were also evaluated with AS-OCT to compare. Results: This method showed substantial agreement with anterior segment OCT in classifying angles (κ > 0.7), with the standard for narrow angles on anterior segment OCT being a trabecular iris angle (TIA) ≤ 11.09°. The area under the curve AUC = 0.875, p<0.001   in the upper and lower quadrants indicated that using the ICA to determine narrow angles was a very good test, with an ICA ≤ 9.7° being the optimal criterion value when evaluating the angle as narrow, with a sensitivity of 92.9% and a specificity of 80.6%. Conclusion: This is a simple technique that does not require much modern equipment, the operations are easy to perform and easy for training. The results has substantial agreement with AS-OCT.

Keywords

Van Herick, glaucoma, anterior chamber angle

Article Details

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