Migraine
Severe migraines can impair our eyesight and can even cause light flashes, spots, wavy lines, and blurry vision. A heavy migraine that comes with eye problems is called a migraine with aura.
More often than not, the eyesight problems can happen right before the migraine hits and in some of the worst cases, we can even experience partial or full loss of vision for a short while. If that happens, consulting a doctor is a must and we might be prescribed medication and rest.