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The photic sneeze reflex (also known as ACHOO syndrome, a contrived acronym for Autosomal-dominant Compelling Helio-Ophthalmic Outburst [1]) is an inherited and congenital autosomal dominant reflex condition that causes sneezing in response to numerous stimuli, such as looking at bright lights or periocular (surrounding the eyeball) injection.
Photic sneeze reflex — a sneeze caused by sudden exposure to bright light. Plantar reflex — in infants up to 1 year of age, a curling of the toes when something rubs the ball of the foot. Pupillary accommodation reflex — a reduction of pupil size in response to an object coming close to the eye.
The photic sneeze reflex is an inherited genetic trait which affects about 25–30% of the population, Lane adds. Sneezing uncontrollably in response to bright light is called ACHOO syndrome, ...
If yes, you likely suffer from a rare genetic condition that has been baffling scientists for millennia. Photic sneeze reflex—also known as autosomal compelling helio-ophthalmic outburst, or ...
This is an accepted version of this page This is the latest accepted revision, reviewed on 6 January 2025. Semi-autonomous, convulsive expulsion of air from the lungs through the nose and mouth For other uses, see Sneeze (disambiguation). "Achoo" redirects here. For the acronym "ACHOO", see Photic sneeze reflex. Sneeze The function of sneezing is to expel irritants from the nasal cavity ...
Photic sneeze reflex Is a reflex condition that causes sneezing in response to looking at bright lights. Rhinitis medicamentosa Rebound nasal congestion suspected to be brought on by extended use of topical decongestants and certain oral medications that constrict blood vessels in the nose.
The microstructure of the nasociliary nerve in the human has not been adquately studied to detect a difference between the populations that do and do not express the photic sneeze reflex. The photic sneeze is not a health problem that might ever warrant invasive electrophysiological studies on live human subjects, but a basic understanding of ...
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