Light Flashcards
How do we see things
Bc light is reflected of surfaces into are eyes
Sclera
White outer coating of eye
Retinas
At back of eyeball there is a layer that has cells sentsitve to light where image is formed
Ciliary body
Behind iris and is a circular structure
Optic nerve
Nerve where electrical signals travel form retina to brain
Suspension lgamints
Ligaments that hold lens and ciliary body in place and otghetr
Lens
Clear curved part of eye that focuses light on retina
Cornea
Clear covering in front of iris and pupil that allows light to enter the eye
Iris
Couloiured part of eye
What’s a blind spot
Point in retina where optic nerve enters
Blind spot f
Everyone has one
Desont resopnd to light
No cones or rods in optic so no image detected
Brain fills in blanks