另一个理论认为，把鼻子眼泪通过鼻泪管泄漏是一种光的反射引起喷嚏。

Another theory suggests that tears leaking into the nose through the nasolacrimal duct are a cause of the photic sneeze reflex.

youdao

打喷嚏是一种反射，也就是说它是一种生理对外界环境的反应，不可控制。

Sneezing is a reflex, which means that it 's an uncontrollable physical response to an outside stimulus.

youdao

反射光的打喷嚏是医疗条件，其中包括人民打喷嚏突发接触强光，也可能多次连续打喷嚏。

Photic sneeze reflex is a medical condition by which people sneeze with sudden exposure to bright light, and possibly also sneeze many times consecutively.

youdao