The photic sneeze reflex manifests itself in the form of uncontrollable sneezing in response to a stimulus which would not produce a sneeze in people without the trait. The sneezes generally occur in bursts of 1 to 10 … See more

Sneezing generally does not present any particular risks to the individual, and is usually more an annoyance than a risk of injury. The fits of sneezing brought about by the photic sneeze reflex can, however, have dangerous … See more

There is much debate about the true cause and mechanism of the sneezing fits brought about by the photic sneeze reflex. Sneezing occurs in response to irritation in the nasal cavity, which results in an afferent nerve fiber signal propagating through the See more

While this phenomenon is poorly understood, recent research has shown that antihistamines being used to treat rhinitis due to seasonal allergies may also reduce the occurrence of photic sneezes in people affected by both conditions.
Those affected by … See more

The photic sneeze effect is a genetic tendency to begin sneezing, sometimes many times consecutively (due to naso-ocular reflex ), when suddenly exposed to bright light. This condition tends to occur more severely after one has emerged into the light after … See more

• Histamine
• Nonallergic rhinitis
• Sexually induced sneezing
• Snatiation See more

• Online Mendelian Inheritance in Man entry See more