Looking at the sun or bright lights
If you’ve ever looked at the sun and sneezed, you’re part of the 10 to 35 percent of the population who experiences something called photic sneeze reflex. This condition is also appropriately referred to as ACHOO Syndrome: Autosomal Dominant Compelling Helio-Ophthalmic Outburst Syndrome.
Photic sneeze reflex typically is inherited and occurs when the sun or other bright lights overstimulate the optic nerve. In turn, the trigeminal nerve, which runs alongside the optic nerve and controls sneezing, is triggered, resulting in an achoo.
