eye Flashcards
(8 cards)
1
Q
what are the key structure of the eye?
A
cornea, pupil, iris, lens, retina, fovea, optic disc(blind spot)
2
Q
what is the retina?
A
clear outer layer protecting the eye, helps focus light rays
3
Q
what is the pupil?
A
hole in center of the iris, controls amount of light entering the eye
4
Q
what is the lens?
A
coloured ring of muscle, expands and contrasts to pupil size
5
Q
what is the retina?
A
curved surface, containing photoreceptors, transduces light into electrochemical energy
6
Q
what is the fovea?
A
cup-shaped, in the retina, containing only cones, sharp vision
7
Q
what is the optic disc?
A
opening in retina where optic nerve leaves eye, no photoreceptors
8
Q
what is the path of light?
A
cornea, pupil, iris, lens, retina
