Your eyes can roll to the back of your head when you have a seizure - it is not the epilepsy medications that do this.
No.
no they're not
The stage of death when a person allows their eyes to roll back in their head and the eyes become fixed is clinical death or the end stage. This is the final stage of death.
You have suffered from a epileptic attack.
No.
Sharks actually have eyes that may appear dark due to a layer of cells in their eyes called the tapetum lucidum, which enhances their ability to see in low light conditions. This layer reflects light back through the retina, giving their eyes a dark appearance.
he likes the undertaker
To protect their eyes from being injured or getting debris in there. Most sharks actually do this, not just white sharks. Or have a protective film that covers their eyes like an eyelid. Also they do this while feeding as well as fighting. The best answer that marine biologists have come up with is that sharks eyes are very sensitive and by rolling them back it protects them from what might hit their eyes.
The easiest way to do this, is to simply just look up and close your eyes then open them but continue to think about looking up!
Not always. Sometimes they don't. In movies they portray the eyes rolling back alot. Probibly because the person loses muscle control and can't control their eyes.
My opinion, not factually based, but I think it is because the muscles, yes even the muscle that control the movement of your eyes are relaxed allowing your eyes to roll much like you do when you are asleep.