VF Part 2

Question 1

“true, organic VF loss”=

Answer 1

VF loss due to a disease not due to an artifact like a lensholder, lens rim, droopy lid, small pupil, wrong age entered, tired patient, etc.

Question 2

what is the central reference level on HFA?

Answer 2

is an index of the patient’s sensitivity

Question 3

the higher the central reference level, the ___ the instrument thinks the patient’s sensitivity is

Answer 3

higher

Question 4

what if the central reference is too high?

Answer 4

stimulus too dim, artifactuous misses

Question 5

what if the age was set too low?

Answer 5

stimulus too dim, artifactuous misses (reduced specificity)

Question 6

where are artifactuous misses more common?

Answer 6

in peripheral edge of field- very common outside central 30