I do not mean the when the eyes wink (opens and close) not, I mean when the eye lid shakes..or any other part of the body
201838
Usually due to a chemical imbalance in the muscle.
515288
Some people sleep with eyes partly open. This could be associated to some  neurological problem called bilateral facial weakness due to muscle abnormalities (facioscapulohumeral muscular dystrophy) which is hereditary.  Loose eyelids can also cause partly open eyes during sleeping.☺
205869
Hmmm, could be different things.  \n\nGenerally flashes can be one whole thing.  One way this happens is when blood is rushing out of the head to other parts of the body(Like when someone is about to faint).  Standing up really fast after sitting a long while you can see dots of light floating around like a cartoon character would see stars after getting hit on the head with a mallet.\n\n"Floaters" can be a whole other.  Whenever you stare at bright light, temporarily part of your vision will "turn off" to protect itself.  Then you'll have a little black spot(or a while spot in the dark) floating around like bug.  Sometimes they can be permanent(in extreme cases, like staring at a solar eclipse), but usually for other medical reasons.\n\nThose are just examples, but there are lots of reasons why you can see odd things in your vision.  For example, I have strabismus(crossed eyes).  When an eye tries to jerk to one side really fast I sometimes see a black splotch in my vision for a second.  I've been told that's because the fast jerk is pulling the optic nerve on the back of my eye.  And the splotch is the back of the nerve on the retina(the "movie screen" part of your eye).\n\nWell, these are just examples.  But yea, go see a doctor.  I bet insurance would cover it and you won't lose anything.  Even if you've had this problem for years, it could get worse.  You never know.\n\n(Just if anyone was curious: I did have crossed eyes, but I had surgery to correct it cosmetically.  However, crossed eyes are not caused by the eye muscles being defective but by a lack of control of them.  It is more of a palsy because eye training can't completely "fix" the problem.  Cutting the muscle to weaken them does mask the "jerky" control, thereby giving cosmetically straight eyes.)
472606
mine does that alot when i'm stressing .. it starts on my eye then to my arm and back to my eye,,, thank-god that only one eye twitchs at a time,,, once you kinda get used to the damn thing twitching  it goes  away    good-luck          ,,,,,,,,,,,,,,,,,,,,````
95009
No, the eyelid blinks in response to drying of the eyeball-in the absence of this, there is little stimulation to the muscles of the eyelid.  In addition, the physical structure has changed such that there is no possibility to blink. The eyelid slides over the eyeball when it blink, and provides support to maintain the eyelid in an elevated, folded state.  In the absence of the eyeball, the eyelid collapses into the space.  Now, all this being said, when a person has a false eye, they DO blink, because the remaining eye stimulates the blink response, and this is transmitted to both eyelids.
425688
This is a very real condition it is Temporary Sleep paralaysis.  While your body is in a resting state your mind is still some what awake and somewhat in rem sleep.  However, sometimes you eyes and some of your mind is in tune but not completely functioning to what is going on in the outside world.   This happens a lot when people are very stressed such as myself, when I was separting from my daughters father an my child was only 3 months old.  There are sleep clinics that can help you over come this, it is very frightening as I know through experiance.  I would talk to your doctor about it, because I am assuming you are not getting a full nights rest.
111671
Blink alot and you may not hurt. But after a few hours of just staring then you may be in some eye pain.
10182
i used to cry in one i too sometimes.....i think its normal maybe the other eye is just slow in secreting tears.....
385990
NO. JUST DO IT UNTIL YOU NEED GLASSES.\nYOU WILL BE FINE.
208987
Your eyes move depending on your thought process.  They say that you can tell if a person is lying by looking at their eyes.  If they look up its a lie, if they look down its the truth.  there are other things like this.  It is a subconcious movement of they eye.  George Carlin said that ehn he thinks about the past he always envisions it somewhere off to the left.  Its like the part of a book that you have already read.
318870
It could be but there are also non-threatening conditions that may cause your hands to shake. See a doctor. My father-in-law's hands do this and so did his mother's. It was something not serious that he just took medecine for.
386762
its very normal I assure you .It has happened to me a million times..Its from putting yourself in a  abnormal position and using muscles that you don't normally use..it causes a shaking afterwards for a little while..completely nomal I assure you 100 percent..
324763
"In humans it is quite normal for just one nostril to be functioning at any one time. During the course of a day they will switch over approximately every four hours or so."\n\nI realize that this doesn't answer "why" it happens, but at least you know it's normal.
214739
nerves sometimes 'short-circit' and give you a reaction it soould not. like turning on a light in the living room and the tv fuzzing. how about a eye twitch,same concept.
241582
Its called Nystagmus.  It means involuntary movement of the eyes.  If you have not already done so see an eye doctor to rule out any eye diseases and also see your family doctor to rule out neurological problems. Usually it is hereditary and doesn't cause any problems but you MUST rule out serious health problems first.
498788
Almost as fun as if one day you are playing an intense game of tiddly winks and one of them flings into your eyeball and gets stuck!\nha\n     ha\nha
511026
Throbbing or twitching?\nhttp://www.eyecaresource.com/conditions/eye-twitching/