Correlation of Peripapillary Retinal Nerve Fiber Layer Thickness (prNFLT) and Macular Thickness (MT) as Measured by spectral domain OCT (SD-OCT) in Patients with Severe Vision Loss in End Stage Optic Neuropathy (ESON)

Optical Coherence Tomography (OCT) of the optic nerve head and macula is a useful adjunct test in monitoring optic nerve disease.Few studies have looked at the utility of OCT in severe vision loss states. Visual acuity in patients with ESON maybe classified using the semi-quantitative scale of counting finger (CF), hand motion (HM), light perception (LP), and no light perception (NLP).Correlating prNFLT or MT with severe vision loss in patients with optic neuropathies may help determine threshold for change, prognosis for change and help guide treatment to prevent further vision loss.