Scintillating scotoma

A scintillating scotoma is a visual disturbance often associated with migraines, characterized by flickering, zigzag patterns, or sparkling lights that gradually expand across your vision. It appears as a temporarily blind or less-clear spot surrounded by shimmering, flashing lines, usually lasting between 10 and 30 minutes. These visual changes are caused by temporary changes in brain activity affecting visual pathways. While often linked to migraines, they can occasionally occur without headache, and if they happen frequently or suddenly, consulting a healthcare professional is recommended to rule out other conditions.