The potential impact of migraine headache on retinal nerve fiber layer thickness

Table 7 Correlations between migraine frequency, attacks duration, disease duration and retinal nerve fiber layer thickness

RNFL thickness	Frequency of the attacks		Duration of the attacks		Disease duration
RNFL thickness	(r) Coef.	P-value	(r) Coef.	P-value	(r) Coef.	P-value
Superior retina
Right	0.275	0.086	0.036	0.827	0.055	0.735
Left	0.168	0.301	− 0.029	0.859	0.136	0.404
Inferior retina
Right	0.007	0.965	0.07	0.667	0.104	0.525
Left	− 0.206	0.203	− 0.078	0.631	− 0.129	0.426
Nasal retina
Right	− 0.16	0.326	− 0.132	0.418	− 0.085	0.604
Left	− 0.152	0.350	− 0.158	0.331	− 0.065	0.692
Temporal retina
Right	0.222	0.168	0.023	0.888	0.170	0.295
Left	0.045	0.781	0.000	0.999	0.072	0.658