Free CPO Visual Field Testing (Perimetry) Questions and Answers

Question 1

What is the primary purpose of visual field testing (perimetry)?

Accepted Answer

To map a patient's peripheral and central vision

Answer

To measure the refractive error of the eye

Answer

To assess the health of the cornea

Answer

To determine the intraocular pressure

Question 2

During automated perimetry, what is the most common method the machine uses to ensure the patient is maintaining steady fixation?

Accepted Answer

Presenting stimuli in the physiological blind spot

Answer

Asking the patient periodically if they are looking at the target

Answer

Using a chin strap to hold the head still

Answer

Tracking the pupil with a video camera

Question 3

A visual field test where the stimulus light is stationary but varies in brightness to find the dimmest light a patient can see at each location is known as:

Accepted Answer

Static perimetry

Answer

Kinetic perimetry

Answer

Confrontation visual field testing

Answer

Amsler grid testing

Question 4

Which of the following visual field defects is most characteristically associated with early to moderate glaucoma?

Accepted Answer

Arcuate scotoma

Answer

Bitemporal hemianopia

Answer

Central scotoma

Answer

Altitudinal defect

Question 5

What is the most critical instruction to give a patient before starting an automated visual field test?

Accepted Answer

'Press the button for every light you see, no matter how dim, while always looking at the central light.'

Answer

'Try not to blink during the entire test.'

Answer

'Try to find the lights by looking around the bowl.'

Answer

'Only press the button for the very bright lights.'

Question 6

On a Humphrey Visual Field printout, a high number of 'False Positives' indicates that the patient was:

Accepted Answer

Pressing the response button too often or randomly

Answer

Not paying attention

Answer

Moving their eye off the fixation target

Answer

Failing to see bright stimuli they should have seen