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Hilla University College Journal For Medical Science

Corresponding Author

Mohammed Qasim Alnuwaini

Authors ORCID

Mohammed Qasim Alnuwaini*: https://orcid.org/0000-0002-3062-4776

Alyea Abood Kareem: https://orcid.org/0009-0007-2790-2871

Document Type

Original Study

Keywords

Retinal nerve fiber layer, Myopia, Hypermetropia, Emmetropia

Abstract

Background: The measurement of retinal nerve fiber layer (RNFL) these days is possible with the high resolution optical coherence tomography (OCT). Objectives: To measure the peripapillary retinal nerve fiber layer thickness in subjects with emmetropia, mild myopia and mild hypermetropia by using OCT. Materials and methods: This is cross sectional descriptive study with a total of 182 healthy subjects who had visited Ibn Al Haitham eye teaching hospital the ages of the participants were between 18 to 40 years. The participants were randomly selected and categorized to three groups (emmetropic, mild myopic hypermetropia) each group was studied for the effect of age, axial length, spherical equivalent on RNFL thickness and the data were analyst using Pearson coefficient and multivariate linear regression models. The RNFL thickness was measured and compared in these three groups by using OCT. Results: The correlation of spherical equivalent with average RNFL and the four quadrants thickness was insignificant. The axial length showed a weak negative correlation in the three study groups but that was statistically not significant. The right eyes on compared to the left showed significantly thicker nasal and temporal quadrants. Conclusion: Mild myopia and hyperopia do not affect the peripapillary RNFL thickness significantly, on increasing the spherical equivalent there is increasing in RNFL thickness but this was statistically insignificant, on increasing axial length there is reduction in RNFL thickness and this was insignificant.

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