EY: v7

SEE THROUGH NERVES:    After you go through the lens,  then you go through the vitreous humor.  Then you bump into something.  What do you bump into? 

SEE THROUGH NERVES: After light passes through your pupil then though your constantly moving lens, it immediately enters the vitreous body.  This is the second, much smaller fluid-filled chamber in the back three-quarters of your eye.

SEE THROUGH NERVES: At the back of your eye, light enters the third nerve call layer, the rods and the cones.  Here it strikes melanin protein molecules.  These proteins enable you to see waterwheels, wagons, wolverines, and weasels…whatever!

SEE THROUGH NERVES:  Scientists recently discovered that there are special clear cells that live in your retina that tunnel through the nerve layers.

SEE THROUGH NERVES: You have millions of these living clear tubes which act like fiber optics.  They channel the light through the nerve maze directly to your rods and cones. It makes it so the world doesn’t look fuzzy and dark to you! 

FOVEAS: The fovea is a tiny, 1.5 inch dent in the back of your eye that over one million color-detecting cones call home.  That’s an area the size of a little rock!

FOVEAS:   When you look at anything like a rabbit on a hill, both your eyes’ tiny foveas must be perfectly aimed at it or you’ll have quad vision….all the time.  Not so fun!

FOVEAS: Though our foveas are tiny, they are the only part of our eye that we can see 20-20.  And half the messages going to our brains from our retina are from the foveas.  Foveas are hugely important!

FOVEAS:   Birds have incredible foveas.  An eagle can spot a rabbit a mile away.  We can barely see a car!  They are able to do this because they have remarkably thin cells squished together in their foveas.  In the width of a pencil lead, an eagle can have one million cells.  Crazy!

FOVEAS:  Hummingbirds and over 50% of the other birds have three foveas.  These enable them to see three different places at the same time–straight ahead and to both sides.. It’s like having 3 video cameras pointed in different directions! Handy!