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.
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.
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.
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.
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