Purpose: To study the relation between measurements of optic cup disc ratio at 1week, 1 and 3 month post-operatively in a population of clinical patients with primary open angle glaucoma undergone trabeculectomy in the Sub-Himalayan region.
Methods: Patient sample size consisting of n=27 were accessed for primary open angle glaucoma. The sample population consists of adults with open anterior chamber angle and with demonstrative RNFL damage, with corresponding visual field loss. Average optic cup disc ratio measurements were taken on Topcon 3D OCT-1 Maestro within a week before surgery and at 1 week, 1 and 3 month post operatively. Pre and post operative value were analyzed using Repeated Measure ANOVA with Bonferroni correction.
Results: It was observed that in the patients during the pre-operative period optic cup disc ratio came out to be 0.7896 ±0.7004. In the first week post operatively it was observed that the optic cup disc ratio came to be equal to 0.7563 ± 0.13342 (p=0.021). During the first month observational period it came equal to 0.73 ±0.1321 (p=0.020). In third month the optic cup disc ratio came to be 0.7004 ±0.18039 (p=0.000).
Conclusions: Significant changes were observed in optic cup disc ratio, post-operatively following Trabeculectomy. Optic cup disc ratio showed improvement in 1 week 1and 3 month post operatively.
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