Table 4 Factors Associated with Outer Retinal Layer Separation.

Variables	ONL-INL Separation		INL to ASCO Separation
Variables	R	P *	R	P*
Age, years	0.109	0.330	−0.084	0.454
Spherical equivalent, diopter	−0.271	0.015^†	−0.303	0.006^†
Axial length, mm	0.340	0.002^†	0.266	0.016^†
CCT, μm	0.138	0.223	−0.026	0.818
Visual field MD, dB	−0.332	0.002 ^†	0.001	0.993
Visual field PSD, dB	0.375	0.001^†	0.051	0.653
Average RNFL thickness, μm	−0.455	<0.001^†	−0.103	0.359
β-PPA, μm	0.897	<0.001^†	0.070	0.531
γ-PPA, μm	0.075	0.501	0.537	<0.001^†
Horizontal tilt, degrees	0.449	<0.001^†	0.460	<0.001^†
Vertical tilt, degrees	0.118	0.290	0.374	0.001^†

R: correlation coefficient; ONL: outer nuclear layer; INL: inner nuclear layer; CCT: central corneal thickness; MD: mean deviation of perimetry; PSD: pattern standard deviation of perimetry; RNFL: retinal nerve fiber layer; β-PPA: beta zone peripapillary atophy; γ-PPA: gamma zone peripapillary atophy.
^*Pearson’s correlation analysis.
^†Statistically significant values (P < 0.05) are shown in bold.

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