“Blurred vision. Shimmering lights. Blind spots. Zigzag lines. This is what migraine aura looks like.

Migraine is a neurological disorder characterized by severe, even debilitating, pain on one side of the head, and can be accompanied by other symptoms such as aura, a sensory disturbance that can cause temporary visual impairment.”

https://www.washingtonpost.com/wellness/interactive/2023/flashes-shimmers-blind-spots-heres-what-migraine-aura-looks-like