CVF

Question 1

physiologic blind spot is where

Answer 1

optic nerve leaves eye

Question 2

avg blind spot

Answer 2

5.5 wide and 7.5 high

Question 3

on visual field blind spot is

Answer 3

15 degree temporal & slightly below horizontal meridian

Question 4

area inside field of vision not seen is

Answer 4

a scotoma

Question 5

physiologic blind spot is

Answer 5

absolute scotoma

Question 6

disease of retina & optic nerve will cause ____ defects in visual field that only affect field of vision in 1 eye unless both involved

Answer 6

pre-chiasmal

Question 7

the nasal retina sees objects in

Answer 7

temporal visual field

Question 8

superior retina sees objects in

Answer 8

inferior visual field

Question 9

the temporal retina sees objects in _____ visual field

Answer 9

nasal

Question 10

the inferior retina see objects in the ____ visual field

Answer 10

superior

Question 11

altitudinal defects

Answer 11

defects affecting superior/inferior field and only respect horizontal line

Question 12

quadrantopia

Answer 12

quadrant of visual field missing respects horizontal and vertical line

Question 13

hemianopia

Answer 13

half of visual field is missing & respects vertical line

Question 14

post chiasmal defects

Answer 14

optic tracts, lateral geniculate body, optic radiations & optical cortex

Question 15

post chiasmal disease causes visual field defects on the ____ side of both eyes called ___

Answer 15

same

homonymous hemianopias

Question 16

pituitary tumor presses on ___ and cause ____ affecting temporal field in both eyes

Answer 16

optic chiasm

bitemporal hemianopia

Question 17

visual pathway

Answer 17

retina 
optic nerve 
optic chiasm
optic tracts 
lateral genicualte body 
optic radiations
occipital (visual) cortex

Question 18

compression of the lower _____ can result in a superior homonymous quadrantopia

Answer 18

temporal lobe radiation fibers

Question 19

compression of upper parietal lobe radiation fibers can result in _____

Answer 19

inferior homonymous quadrantopia

Question 20

boundaries of the VF range ___ superiorly & nasally, ___ inferiorly, and ___ temporally (total of 150 horizontally & 135 vertically)

Answer 20

60
75
90

Question 21

____ targets are more precise bc they present a finer stimulus to the retina and are easily identifiable

Answer 21

stationary