EFFECT OF AXIAL LENGTH ON PRIPAPILLARY RETINAL NERVE FIBRE LAYER (RNFL) USING OPTICAL COHERENCE TOMOGRAPHY (OCT)

Document Type : Original articles: include clinical trials, interventional research, Basic researches and clinically relevant laboratory investigations

Authors

Ophthalmology dept., Faculty of Medicine, Sohag, Univ., Egypt

Abstract

Purpose: To investigate the effect of axial length and spherical equivalent on the peripapillary
retinal nerve fiber layer (RNFL) and ganglion cell complex (GCC).
Methods: fourty-four subjects
were included. Peripapillary RNFL thickness in four sectors (superior, nasal, inferior, and
temporal quadrants) and GCC thickness were determined by OCT, axial length and spherical
equivalent also measured and correlations of the main outcomes were analyzed.
Results:
Negative correlations were found between the peripapillary RNFL thickness and axial length
(AL) at superior (r=-0.59 P=0001) and inferior (r=-0.39, P<0 001) quadrants. There was a
significant positive correlation with spherical equivalent (SE) at the corresponding quadrants
(r=0.56, P<0 001 and r=0.42, P<0 001; resp.).
Conclusions: there is significant negative
correlation between axial length and RNFL measurement


Keywords