Retinal Nerve Fibre Layer Thickness in Migraine Patients with or without Aura.

The objective of this study was to evaluate the retinal nerve fibre layer (RNFL) thickness using spectral-domain optical coherence tomography (Optos SD-OCT, UK) in migraine patients with or without aura and to search for possible structural effects of migraine on the retina. Eighty eyes of 40 migraine patients and 80 eyes of 40 healthy subjects were included in this study. All four quadrants (temporal, superior, nasal, and inferior) and average peripapillary RNFL measurements were taken with SD-OCT in both groups. The average age of the patients and the control group were 35.7 ± 9.5 and 40.9 ± 12.7 years, respectively. In the migraine group, 45% of patients were with aura, and 55% were without aura. The average frequency of attacks per month and the migraine diagnosis time was 4.6 ± 4.4 and 6.2 ± 5.6, respectively. Parameters related to RNFL thickness of right and left eyes' average, superior, inferior, nasal, and temporal quadrant values were found to be similar in migraine and control subjects (p > 0.05). Focusing on the RNFL thickness of right and left eyes and the migraine parameters, there were no statistically significant differences between migraineurs with aura and without aura (p > 0.05). The correlations between the RNFL thickness parameters and the migraine patient's MIDAS (Migraine Disability Assessment Score) score, frequency of attacks, and diagnosis time of migraine were studied and no correlation was noted (p > 0.05). These findings demonstrated that migraine disease with or without aura does not have any effect on the thickness of the RNFL.