What does Achoo syndrome mean?

Achoo syndrome meaning in Medical Dictionary

A disorder characterized by nearly uncontrollable paroxysms of sneezing provoked in a reflex manner because of the sudden exposure of a dark-adapted at the mercy of intensely bright light, generally to brilliant sunlight. The number of successive sneezes is generally 2 or 3, but can depend on about 40. The Achoo syndrome normally known as the photic sneeze response or the helio-ophthalmic outburst syndrome.