الفهرس 
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Abstract
The aim of this study is to evaluate the effect of axial myopia on the retinal nerve fiber layer thickness and optic disc size using spectral domain Optical Coherence Topography. Patients and Methods: This study was a cross-sectional study on 30 myopic eyes of patients aged between 30-40 years who were coming to the outpatient clinic. The patients were recruited from the outpatient clinic of the Health Insurance Hospital in Suez. Results: This study found that the average, superior and inferior retinal nerve fiber layer thickness (RNFLT) significantly decreased with increase of the axial length. This study also found a direct correlation between axial length (AL) and disc area. However, AL was not significantly correlated with RNFL thickness in the nasal or temporal quadrant, optic rim area, or cup disc ratio (CDR). Conclusion: The study revealed that AL had a correlation with RNFLT and that axially myopic eyes showed thinner RNFLT than emmetropic eyes. [Magda M. Samy, Ayman A. Gaafar, Karim M. Naguib, Menna Allah Ali. Studying the Influence of Axial Length on Retinal Nerve Fiber Layer Thickness and Optic Disc Size Measurements by Spectral-Domain OCT. Nat Sci 2020;18(1):143-149]. ISSN 1545-0740 (print); ISSN 2375-7167 (online).