Comparison of Optic Disc Parameters By Slit-Lamp Biomicroscopy and Optical Coherence Tomography

Objective

To compare optic disc parameters by slit-lamp biomicroscopy and optical coherence tomography. Study Design: Analytical cross-sectional study. Place and Duration of Study: Department of Ophthalmology, PAF Hospital, Islamabad, Pakistan, from Jan to May 2023. Methodology: The study was conducted on 100 eyes of 50 patients who underwent detailed refraction and dilated fundoscopy. Optic disc parameters were analyzed by a single clinician on a slit-lamp biomicroscope, while OCT images were assessed by a separate observer. Non-normally distributed continuous variables were summarized as median (interquartile range, IQR). Data was analyzed using SPSS version 24. Comparisons between clinician and OCT measurements were performed using the Mann–Whitney U test. A p-value ≤0.05 was considered significant.