i know it is strange but i was looking into my girlfriends eyes and they moved together at the same speed and in the same place if we had to build a model of the eyes we would have to connect them somehow
2006-12-31 06:48:22 · 13 answers · asked by tank 1 in Science & Mathematics ➔ Biology
There are 6 muscles around each eye and they have nerves that supply them and make the eyes move. The nerves lead back into the brain.
There are certain areas of the brain that control the eye movements so that wherever you look, side to side, up and down, near and far, both eyes are pointing at the thing you are trying to look at. This is how we can see in 3D.
If you have a problem with one of these nerves or muscles the eyes may not move together and you can get double vision.
This is a very basic explanation. I spent 3 years at Sheffield University learning about this!
2007-01-01 09:26:38 · answer #1 · answered by madeline 1 · 0⤊ 0⤋
Actually your eyes don't move together. Try this experiment:
Put your finger 10 cms from your face parallel with your nose and focus on it.
Move it left until it is over the centre of your left eye (keep focusing).
One eye will be looking straight ahead and the other to the left.
If your eyes moved together and were connected then they would not be able to focus on the same object at the same time unless it was at a large distance.
Hence your brain moves each separately.
2006-12-31 08:10:33 · answer #2 · answered by Anonymous · 1⤊ 1⤋
If they were connected people wouldn't be able to cross their eyes, people, would they? Geez.
Someone else already mentioned the real reason and its to do with optics. Your brain does something pretty clever by giving you a single image when its derived from 2 visual devices a few inches apart. As well as focus together on objects the fact that you have 2 eyes allows you to gauge distance - something that becomes notoriously hard to do for people who have lost vision in one eye.
So the answer is because they need to move together. There's nothing physical in your head that makes them - and indeed we can bypass this natural state by trying to focus on the end of our noses...
2006-12-31 07:00:25 · answer #3 · answered by Anonymous · 0⤊ 1⤋
Well, they don't always, but in general, it is because our brains control our eyes, and the brain wants to find the focus. You can only focus your eyes on an object when they move to that object in concert. So you learn to move your eyes together. But you know you can cross your eyes if you want to, just by looking at the end of your nose. So it's not a question of being out of your control. It is a question of the control being subconscious.
2006-12-31 06:57:12 · answer #4 · answered by auntb93again 7 · 2⤊ 0⤋
The muscles are controled by the brain. And the brain tells them to move together.
2007-01-01 08:36:38 · answer #5 · answered by confused 4 · 1⤊ 0⤋
The muscles are controled by the brain. And the brain tells them to move together.
2006-12-31 06:57:10 · answer #6 · answered by Anonymous · 3⤊ 0⤋
because our brain controls wot we do and if we want to look left or right e.t.c they will both go tha way
unless u have a lazy eye lol
2006-12-31 06:57:49 · answer #7 · answered by dwayne b 2 · 0⤊ 0⤋
They are connected by nerves and the muscles that control them.
2006-12-31 06:56:19 · answer #8 · answered by Anonymous · 1⤊ 0⤋
because they are connected to you brain, which moves them as a pair.
2007-01-02 11:56:03 · answer #9 · answered by Anonymous · 0⤊ 0⤋
Practice.
2006-12-31 06:55:49 · answer #10 · answered by Anonymous · 0⤊ 2⤋