Seeing stars? Health’s medical editor explains why this can happen (and why it’s probably nothing to worry about).
Eye Symptoms and What They Could Mean
Visit your doctor or an eye specialist if you see ashes and sparks much more regularly or randomly. Lights or shimmering spots in your vision can be a migraine symptom. The sudden appearance of ashes, and possibly blurred vision, can also signal a retinal tear or detachment, which is an emergency and requires surgery (it can cause permanent vision loss if left untreated).