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The aim is to establish normative peripapillary retinal nerve fiber layer thickness values for healthy Omani adults.

July 31, 2026BMC OphthalmologyOpen Access

Normative profile of retinal nerve fiber layer thickness using spectral domain optical coherence tomography in healthy Omani adults with emmetropic eyes: a cross-sectional study

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The aim is to establish normative peripapillary retinal nerve fiber layer thickness values for healthy Omani adults.
Cross-sectional design involving 378 healthy Omani adults aged 19–63 years.
pRNFL thickness and optic nerve head parameters measured using Spectral Domain-OCT.
Statistical analyses included t-tests, one-way ANOVA, and Pearson’s correlation.
Mean global pRNFL thickness was 95.34 μm (OD) and 95.04 μm (OS) with 95% reference intervals of 79.00–116.00 μm (OD) and 79.47–113.52 μm (OS).
Females had thicker pRNFL than males (p < 0.01).
Significant decline in pRNFL thickness with age was found, particularly for those aged 40 and above (p < 0.001).

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Cross-sectional study establishes normative retinal nerve fiber layer thickness in Omani adults, indicating key demographic influences.

Asmi et al. (2026) studied this question.

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