In our previous studies, we have reported that the parasympathetic preganglionic denervation of the CG can occur in patients with SAH or meningitis as the result of an arterial rupture in the subarachnoid space.

The purpose of this study was to investigate the potential relationship between SAH-induced neuronal degeneration in the CG, pupil diameters and photophobia scores in rabbits.

In our previous studies in SAH animal models, we studied the relationship between the neuronal density in the autonomic ganglia of cranial nerves and vasospasm in the cerebral arteries.

This study could contribute to a better understanding of the pathways involved in SAH-induced photophobia.