Affiliation:
1. Department of Ophthalmology, Choudhury Eye Hospital and Research Centre, Silchar, Assam, India,
Abstract
Purpose:
The aim of the study was to assess the different parameters of anterior chamber angle (AA) with anterior segment optical coherence tomography (OCT) in patients with or without the diagnosis of glaucoma.
Methods:
A cross-sectional and observation study of angle parameters for clinically diagnosed, undiagnosed, and suspected patients of angle closure was done. Patients with glaucoma suspect not having angle closure were also included in the study. AAs (nasal and temporal), AC depth (ACD), AC area (ACA), and central corneal thickness (CCT) were assessed using Cirrus high-definition optical coherence tomography.
Results:
Total 349 eyes of 178 patients with mean age of 41.31 ± 13.61 years were analyzed. One hundred and six of them were female (59.55%) and 72 were male (40.45%). The mean values of CCT were 540.85 ± 39.99 µm, 536.44 ± 41.25 µm; ACD were 2.37 ± 0.5 mm, 2.45 ± 0.4 mm, ACA were 17.04 ± 5.20 mm2, 17.48 ± 4.47 mm2, and AC width were 11.10 ± 0.45 mm, 14.13 ± 0.39 mm for the right and left eyes, respectively. The mean AA for the right and left eyes were nasal 22.23° ± 14.57°, 24.14° ± 14.10°; temporal 25.18° ± 14.13°, 25.88° ± 13.55°, respectively.
Conclusion:
The nasal AA was found to be significantly narrower than the temporal angle in both right and left eyes; and the angle asymmetry increases with increasing age.