is a Brain Network Disorder, Not an Eye DefectVSS is a neuro-ophthalmological condition, meaning the root cause lies in the brain, not the eyes. Standard optometric examinations usually yield “normal” results because the condition stems from abnormal neurological activity. It is officially recognised as a complex network brain disorder characterised by cortical hyperexcitability. Specifically, areas like the visual cortex (particularly the lingual gyrus) and the thalamus are overactive, while regions responsible for filtering sensory information have reduced connectivity. The brain struggles to process and filter visual input correctly, causing the patient to “see” continuous static and other visual noise.