Melatonin acts as a neuromodulator that may help regulate abnormal cortical hyperexcitability and neuronal synchronization associated with Visual Snow Syndrome by binding to MT1 and MT2 melatonin receptors in the central nervous system. Its primary effects include potential reduction of neurological hyperactivity, modulation of sleep-wake cycles, and mitigation of neuroinflammatory processes that might contribute to the syndrome's symptomatology.