Abstract
Background: Various types of modalities exist for examination of the Optic nerve head. As changes in the optic disc are a major indicator of glaucoma it is vital to establish which among the modalities correlate best with each other. In this study the cup to disc ratio was assessed using optical coherence tomography and optic nerve head photography and the ndings were compared A Methods: n observational study was conducted. Group I consisted of 50 patients of primary open angle glaucoma and Group II consisted of 50 non-glaucomatous patients. ONHP and OCT were done to assess the average cup to disc ratio CDR. Average CDR as calculated by the 2 methods was compared by Pearson correlation. Correlation value of +1 is total positive correlation, 0 is no correlation and −1 is negative correlation. The correlation value in the case Results: group was 0.86 for CDR. The correlation value in the control group was 0.72 for CDR. The study fo Conclusion: und OCT ndings and ONHPndings have weak correlation
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