ANY SCIENTISTs?

Question

how does light travel through the eye? use the majot structures of the eye to explain!

Answer 1

Light which passes through the pupil opening, enters the crystalline lens and is focused on the retina located on the back of the eyeball.

Answer 2

Certain frequencies of electromagnetic radiation, traveling along as photons, can be detected by the cells inside the human eye. These frequencies have been labeled visible light since to humans, they are visible. What creativeness huh? Anyway, photons go past the cornea, funneled by the iris through the pupil to the lens. The lens then focuses them onto the retina. The best focus occurs at the macula of the retina. When these funneled and focused photons [say THAT fast 10 times ...go ahead I 'll wait..... Funneled and focused...anyway... :P] hit the retina, optic cells are stimulated. Here is where I have to get a bit vague cause honestly biology sucked and was waaaay too difficult for me so I stuck to physics and chemistry. So, these cells send signals along the optic nerve into a section of the brain. Whatever that section is called I have no clue. hypothalamus, hippocampus, a hippopotamus running along college campus I have no idea. The lens causes the image of all the photons to be inverted when hitting the retina and somewhere up in that unknown section of the brain, the synapses fire and neurons bounce around converting the image to right side up so to speak.
All in all, be glad those cells on the retina are only sensitive to the visible spectrum. We'd have information overload if our cells could detect and our brains had to process photons of UV or IR or radio or X-ray frequencies or the rest of the electromagnetic spectrum.
Oh yeah, and some parts called "rods" help us see in low light situations and other parts called "cones" help with detecting different color frequencies. No idea where those are, but you already know why..

Answer 3

Light is a radiative mass flux of difrent frequencies. The Frequencies are determing the colors we see.
The light maps out an object ,this light flux enter the lense of the eye which projects it onto the retina,where nerve and special cells structure respond to collision pressure of light particles and frequencies.The information is sent via optic nerve to a very complex computer(the Brain) which assembles the imformation and registers it as an image.
Light is not visible unless it enter our eyes.

Answer 4

For lots of information including pictures and diagrams, try an internet search on "human eye."

Answer 5

You might get some good answers if you place this question in the Biology category.