parts of the eye Flashcards
iris
the colored part of the eyeball, controls restriction and dilation of the pupil and thus controls the amount of light entering the eye
Cornea
the front part of the eyeball that sticks out; begins refraction
pupil
the black circle that can be seen in the eye, light passes through
lens
continues refraction and focusing on to the retina. moves by way of suspensatory ligaments
layers of the wall
- sclera
- choroid
- retina
sclera
outer layer of the eyeball, protection
choriod
second layer of the eyeball, absorbs stray lights
retina
third layer of eyeball, contains photoreceptors
optic disc
blind spot; where retina leaves the eye and becomes the optic nerve
rods
see in low levels of light, scotopic vision
cones
photopic vision, color