week 5- visual system Flashcards
1
Q
anotomy of eye
A
6
2
Q
1 obits
A
pcoets in skull- move by ocumotor
3
Q
2 sclera
A
tight white oyter coat- opaque
4
Q
3 cornea
A
outermost layer - transparent
5
Q
4 iris
A
conrtol light reaching retina and pupil
6
Q
5- retina-
A
focus held by ciliary muscle
7
Q
6 optic nerve
A
carries info to brain
8
Q
light responds to
A
quantaphatons- wavelength ( 360- 760)
9
Q
phantos
A
enter eye depending on wavelength
10
Q
light properties
A
wavelength- percent colour
intensity- bring
lateral inhibition- neurons in retina, help see edges clear
11
Q
visual feild- all see not moving head
A
centre object- visual acity
(fovea is thinning layer of retina ganglion ceel at centre of retina= high acuity vision
12
Q
binocular disparity
A
different position in retinas- greater close object
