Let’s take a closer look at the most common (and concerning) causes:

1. Migraine with Aura

This is one of the most frequent causes, especially in younger adults. These are migraines that are preceded or accompanied by visual disturbances like:

Flashing lights
Blind spots
Blurred or tunnel vision in one eye

Common triggers include:

Stress
Dehydration
Hormonal changes
Certain foods (like aged cheese, wine, or processed meats)

Though migraines aren’t usually life-threatening, they can mimic more serious issues — and frequent episodes should still be evaluated by a doctor.

2. Optic Neuritis