EYE

How the light travels from eye to the brain

The light first enters the cornea and refracts light into your pupil,The iris helps our eyes to only pass only a small amount of light then once the light enters the pupil it enters the lens and what the lens does is it focuses the light  onto your retina.Your retina is connected to the optic nerve.The optic nerves role is to carry the nerve impulses to the brain.Which then we can see the images in our mind .




cow eye disection
The cows eye is a little bit bigger then the human eye
The cows pupil is oval while the humans eye is round
cows aren't colourblind

Cows have night vision because of the blue chrome thingy at the back of their retina called choroid.