PRL and Tinnitus: Liu et al. demonstrated that patients experiencing pulsatile tinnitus displayed several ocular and intracranial signs of IIH on MRI scans, such as optic nerve sheath enlargement, optic nerve tortuosity, posterior globe flattening, empty Sella, downward displacement of cerebellar tonsils into the foramen magnum, and slit-like lateral ventricles [123].According to a study by Prabhat and colleagues, hormonal abnormalities such as raised prolactin, decreased TSH, and decreased cortisol were found in 37.5% of patients with IIH [124].