light eyes Flashcards
where do light rays enter through?
the cornea
after they pass through the cornea, where do the light rays go through?
the pupil and into the lens
what is the pupil controlled by?
the iris
what makes the brain understand the image in an eye and how?
the retina via the optic nerve
what will happen when an image hits “the blind spot’?
you wont see anything
what part of the eye is always changing? and what is it called
the lens and its called accomodation
what happens to the lens when you look at something far away?
it gets thinner
what happens to the lens when you look at something closer up?
it gets thicker
describe how light travels through to the brain
- light rays enter through the cornea
- then through the pupil and the lens
- they then pass through to the retina and that passes the image to the brain via the optic nerve
what do the rods do?
help you see black and white images
where are rods and cones located?
in the retina
what do cones do?
cones help you see color
what does EMS stand for?
electromagnetic spectrum
what happens when all waves are together?
they make white light
what are the primary light colors?
red, blue and green
