visual aura
Pre-migraine light show
A visual aura is a sensory disturbance affecting vision, typically preceding a migraine or seizure.
Common forms include shimmering lights, blind spots, zigzag patterns, or flickering at the edges of vision: I knew a migraine was coming when the visual aura started.
The episode usually lasts fifteen to thirty minutes.
In migraine contexts, often shortened to just aura.
- migraineSevere neurological head pain
- flashingRepeated brief illumination
- flashing lightsIntermittent bright signals
- zigzagAngled back-and-forth path
- zigzag linesJagged back-and-forth pattern
shimmering · scotoma · blind spot · blindspot · headache · flickering · fortification · scintillating · prodrome · warning sign · halo · distortion · kaleidoscope · warning · neurological · phosphene · tunnel · blurring
visual, visually, visualize, visualization, visuals, vision, visionary, visible, visibility