visual fields 1

Question 1

what is the extent of the visual field superiorly, inferiorly, temporally and nasally

Answer 1

superiorly - 60 degrees
inferiorly - 75 degrees
temporally - 100 degrees
nasally - 60 degrees

Question 2

what is the binocular visual field extent

Answer 2

120 degrees

Question 3

kinetic perimeter

Answer 3

goldman is an example
gross perimetry is also and example
target or stimulus moves and px reports when they see the light or not.

vary eccentricity from fixation
test meridians every 10 or 20 degrees

Question 4

static perimeter

Answer 4

no examiner. computer based. stimulus does not move just flashes on and off in different locations
test fixed locations, typically 6 degrees apart
change stimulus intensity according to patient responses

Question 4

isopter

Answer 4

a line joining points of equal retinal sensitivity to a given test stimulus

Question 5

how to calculate sensitivity of static perimetry1

Answer 5

sensitivity is reciprocal of threshold