why can't you open your eyes while you sneeze?
400067
because if you opened your eyes when you sneeze your face will explode
64314
Some people do find that bright light causes them to sneeze. It seems to be biological or hereditary. If you walk outside into the bright sun or look at a bright light you sneeze.\n\nIts called Photic Sneeze Reflex!!
327835
Due to the pressure in your cranium your eyes would be pressurized slightly. There would be a slight bulging of your eyes from your head which is actually what happens normally when you sneeze, however your eyes would stay in just as they normally do. The closing of your eyes is just to maintain some extra support to keep the muscles and nerves which hold your eyes in from having to do as much work.\n\nWithout the eyelid, the many eye muscles and optical nerve would do a fine job keeping the eyes in.\n\nIf you've seen Ripley's or Guinness Book of World Records, and you've seen the people that push their eyes out of their heads really far, you'd realize that you dont have to worry because your eyes can handle a lot.
777454
Not everyone sneezes harder when they look at a light.  However, some people have the Photic Sneeze Reflex.  They do sneeze in bright  light.  \n\nThe most prominent theory, from Wikipedia - Photic Sneeze Reflex - http://en.wikipedia.org/wiki/Photic_sneeze_reflex  is\n"The probable cause is a congenital malfunction in nerve signals in the trigeminal nerve nucleus. The fifth cranial nerve, called the trigeminal nerve, is apparently responsible for sneezes. Research suggests that some people have an association between this nerve and the nerve that transmits visual impulses to the brain. Overstimulation of the optic nerve triggers the trigeminal nerve, and this causes the photic sneeze reflex."\n\n----\nSee also OMIM - ACHOO: http://en.wikipedia.org/wiki/Mendelian_Inheritance_in_Man
333376
Closing your eyes is a natural reaction for several reasons: strong wind blasts and, of course, sneezing. It's mainly to keep your eyes protected from the resulting dust and mist. Your eyes will not pop out of your head, your actual sockets would hold them in! This is a myth. I don't know how it got started, but it's not true.
402647
It is not the sun that is stopping you from the sneeze, it is the position of your head. you can look at the moon or a a piece of key lime pie that is floating in the sky and have the same result.
125102
Apparently it's impossible to sneeze and keep your eyes open at the same time....reflex thing.
252147
In a way "yes" and a way "no". Yes, most of the time it is physically imposible, yet, there are those rare cases in which u can sneeze with your eyes open. It has yet been proven that the eyes pop out, yet the sneezing with the eyes open does occur. I learned in my Psychology class that there is a disorder called the Conversion Disorder. In most cases of this disorder there is uncontrollable sneezing, and in such cases as these, the persons eyes DO NOT close during a sneeze.\n\nAlso, even though u may think that the eyes arent connected to the nose, throat, etc. They in fact are connected. Have u ever taken eye drops and allowed the whole entire eye drop get completly absorbed by the eye?? If u have did u taste anything?? Did u smell any thing?? Im not sure exactly what its called, it could possible be the tear ducts, i dunno, but there is an entry/exit way at the corners of your eyes, when u take eye drops and the eye drop "mysteriously" dissolves, most of it went down that entry/exit way. Hence, it sliding down your throat and into your mouth (just a lil bit) tasting it and smelling it at the sametime. If yer tasting yer smellin as well. (unless those sensory organs are usless) This doesnt werk on Visine and water-based eyedrops. \n\nSo, the answer is "NO" on the eyes poppin outta the dome.
152876
well i think it will but people say it is impossible to sneeze with  your eyes open but my teacher told me that his mom a school principal  had a student who did that once in the shower i m not sure but that would be scary
722090
When you sneeze every muscle in your body tightens, The muscle in your eye might be more sensitive to the sudden spasm
46066
When sinus around your nose is releasing too much liquid to your nose, and block your air passage, the sneeze mechanism in your brain tells you to sneeze.
925113
Well the fact is that humans cannot sneeze while asleep.\nSneezing requires a reflex mechanism, wherein the sensory nerves in our upper respiratory tract, esp nostrils, are stimulated by some stimuli (mechanical or chemical or other)and these nerves then go to the CNS (i.e brain) and as a final process excite the nerves which supply muscles pf our respiration and the pharngeal region and the man sneezes thus. You must \nknow that this reflex is a natural means to protect our sensitive upper respiratory tract from harmful influnces or, more appropriately, external influences, be it a solid or a gas or as a response to some infection. Now when the man sleeps, his brain is not working at its normal levels and so even though the man's nerves have some external factor acting upon them,\nno reflex is initiated and the man doesn't sneeze. You must also know that when the stimuli continues or crosses a particular \nlevel, it changes from an irritative agent to a source of maybe say pain and the the man can have a disturbed sleep; there is a threshold for every thing.
760689
If you did manage to sneeze with your eyes open, your eyes would pop out of your head.   Er, no. As discussed above, some people do manage to sneeze with their eyes open, and they don't go blind from it. Eye sockets are made of bone, they aren't connected to the nasal passages, and there are no muscles behind the eyes that contract when you sneeze, so there's really no mechanism involved in a sneeze that could force your eyes out of their sockets. Even if there were, human eyelids aren't particularly strong, so simply closing your eyes during a sneeze wouldn't be sufficient to keep them in their sockets if a sneeze truly had enough power to dislodge them. (In any case, some people — due to circumstances such as birth defects or injury — do not have eyelids. Were the "eye-popping" rumor true, all of those people would have to spend their lives in constant mortal fear of sneezing.)
475713
It doesn't do that with everyone....\n\nbut in most people the nerve from the eye (Optic nerve) runs just next to the nerve for the nose(Olfactory nerve).\n\nSo a powerful light stimulate the optic nerve, which stimulates the Olfactory nerve (from proximity) - the result is a feeling that you need to sneeze.\n\n\n-- edit --\nWhoops.. not the olfactory nerve- that conveys odors...\n\nHere is a snip from a web page addressing this issue:\n\nQ. Why Does Sunlight Cause Sneezing?\nFrom Apply Now, Your Guide to Vision.\n\nUp to 25% of us can't escape it. We walk out of a dark movie theater into the bright sunlight, and then it happens: "Ah choo!" This sneeze reflex is a genuine phenomenon. So what causes it? \n\nA. Close association between the eye’s optic nerve and nerves causing the sneeze reflex may explain why an estimated 5-25% of people sneeze with sudden exposure to bright sunlight or other light sources.\n\nSudden bright stimulation of the eye that occurs after a person has become adapted to darker surroundings is thought to bring on the condition, known as photic sneeze reflex. The reflex also is called Autosomal Dominant Compelling Helioophthalmic Outburst Syndrome, known by the acronym ACHOO. (Not making this up. Really.)
550897
A search of the Internet yields a lot of sites that basically say that it's a known phenomenon, but science hasn't figured out why.\n\nThere is speculation that the optic nerve gets overloaded by the bright light and "leaks" onto the nerves that trigger sneezing.
870320
ditto to the 2 answers above\n\nyou may get some peace from sneezing ect ... because you are relaxed\nbut you still CAN sneeze
323959
Usually the sneezing relex make your eye lids to close.