International Journal of Medical and Health Research

International Journal of Medical and Health Research


International Journal of Medical and Health Research
International Journal of Medical and Health Research
Vol. 6, Issue 7 (2020)

Normal measurements of optic nerve sheath diameter in Indian population


Amritanshu Agarwal, Sunil Kumar Agrawal, Kirtigiri Goswami, Vineet Srivastava

Aims and Objectives: The aim of this study was to establish normal measurements of the optic nerve sheath diameter (ONSD) on magnetic resonance imaging (MRI). Materials and Method: 100 normal individuals between 3 months and 79 years were included in this study and diameter of ONS was taken at 3 mm behind the globe in T2W sequence using 1.5 tesla Magnetom Essenza Siemens MRI machine and the result was analysed. Results: A total of 100 participants with mean age of 31.11 years were studied. The overall intraorbital mean ONSD was 4.656 mm (range: 3.6 mm–7.6 mm, (S.D.- 0.732) on Rt side; while on Lt side it was 4.663 mm (range: 3.3 mm–7.6 mm, (S.D.- 0.733). There were no statistical differences in the measurements between gender and also laterality. Our range were consistent with many published data on ONSD. Conclusion: There are few studies done in Indian population to measure normal ONSD. So, this study can be used as reference in the management of conditions affecting ONSD.
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