Ijaz Ali¹*, Muhammad Shoaib², Usman Khan² and Fazal Rahman³

¹Optometrist at Department of Ophthalmology, Services Hospital Lahore, Lahore, Pakistan
²Optometrist, Department of Optometry and Vision Sciences, The University of Lahore, Lahore, Pakistan
³Registered Nurse, Shaukat Khanum Memorial Trust, Lahore, Pakistan

*Corresponding Author: Ijaz Ali, Optometrist at Department of Ophthalmology, Services Hospital Lahore, Lahore, Pakistan.

Received: June 21, 2023; Published: July 19, 2023

Abstract

Background: Optic neuritis is the inflammation of the optic nerve. It can be associated with causes such as auto-immune disorders, infectious and inflammatory conditions. The aim of this study was to evaluate contrast sensitivity and visual acuity changes in patients diagnosed with optic neuritis, and to find out which type is the most prevalent among optic neuritis.

Purpose: The purpose of this study is to assess changes in many areas of visual function in individuals with optic neuritis before and after medical treatment, including visual acuity, contrast sensitivity, color vision

Methodology: Patients meeting eligibility criteria were selected in this research which was done in various public sector hospitals. A self-designed proforma was used to collect data from the patients that includes history, examination of visual acuity and contrast sensitivity. Patient’s visual acuity was assessed with Snellen log Mar chart and contrast sensitivity using Pelli-Robson chart. After assessment data was collected and data analysis was done with IBM SPSS version 25.0 software.

Results: It is found that the males accounted for 12 of the total sample of 32, while females accounted for 20 in a hospital based, cross-sectional study. The ages ranged from 15-45 years. VA of both eyes was categorized as mild (<0.20), moderate (0.30-0.60), severe (0.70-1.00) and it was found that 46.9% had VA severe in left eye than right eye (21.9%). Contrast sensitivity was also presented in terms of categories of mild (=/> 2 log unit), moderate (<1.50 log unit), severe (<1.0 log unit). Contrast sensitivity in left eye suffered from severity (62.5%) than right eye (53.1%). The most prevalent type of optic neuritis found in our study was retro-bulbar neuritis 43.8% other were papillitis (34.4%) and neuro-retinitis (21.9%).

Conclusion: Thus, from the present study, it is concluded that There is reduction in contrast sensitivity and visual acuity due to optic neuritis.

 Keywords: Contrast Sensitivity; Optic Neuritis; Visual Acuity

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Citation

Citation: Ijaz Ali., et al. “Assessment of Visual Acuity and Contrast Sensitivity in Optic Neuritis".Acta Scientific Ophthalmology 6.8 (2023): 13-21.

Copyright

Copyright: © 2023 Ijaz Ali., et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.