Spectrum of optic neuropathies presenting in neuro-ophthalmology clinic at afio

Abstract

Objective: To study the spectrum of optic neuropathies in patient’s presenting at AFIO Rawalpindi. Study Design: Descriptive study/retrospective study. Place and Duration of Study: Armed Forces Institute of Ophthalmology, Rawalpindi, from Jan 2017 to Dec 2017. Methodology: Retrospective analysis of hospital record of patients coming to neuro-ophthalmic clinic of Armed Forces Institute of Ophthalmology (AFIO), Rawalpindi, from Jan to Dec 2017 was done. Only patients with clear final diagnosis of neurophthalmic disease were included. Those with vague diagnosis were excluded. Data was entered in SPSS version 22 and grouped into variables before analysis. Chi-square test was used for statistical analysis. The p<0.05 was considered significant. Results: Forty-five patients were included in study including 33 (73.3%) males and 12 (26.6%) females. Mean age of patients was 41.64 ± 17.74 years. Patients were grouped into ischemic optic neuropathy 20%, toxic optic neuro-pathies 20%, compressive optic neuropathies 17.7%, inflammatory optic neuropathies 11%, neuroretinitis 6.7%, hereditary optic neuropathies 6.7%, multiple sclerosis (MS) related 4.4%, neuromylitis optics spectrum (NMO-SD) related 4.4%, traumatic optic neuropathies 4.4% and nutritional optic neuropathies 4.4%. Deficiency of vitamin B12 and vitamin D was strongly associated with nutritional optic neuropathies while raised TLC was most common association with inflammatory optic neuropathies (57.14%) and of neuroretinitis (66%). Anti-tuberculosis drugs were most common cause of toxic optic neuropathies (88.88%). Chi square test was used for statistical analysis and p<0.05 was considered significant. Conclusion: Ischemic optic neuropathy is the most common presentation in our population according to our study. However, the cohort is a small one. Future studies with larger cohort are recommended.