Assessing the alterations in retinal nerve fiber layer thickness before and following Glaucoma filtration surgery using optical coherence tomography: A clinical study

Abstract

Background: Retinal nerve fiber layer thickness is measured at a 3.5mm distance from the optic nerve head center. This thicknessalteration is present even in absence of vision loss warranting continuous monitoring of the affected eyes. A high correlation is seen between alteration of retinal nerve fiber layer thickness and vision loss, allowing accurate assessment of progression of glaucoma.