COT VISUAL FIELDS EXAM QUESTIONS
AND ANSWERS. VERIFIED 2026.
Each mm on the retina is equal to how many degrees on the visual field? - ANS 5 degrees
An object on the patient's right will be perceived by the patient's: - ANS An object on the
patient's right will stimulate the temporal retina of the left eye and the nasal retina of the right
eye. The foveae (plural of fovea) are used during central fixation, not for peripheral vision.
The anatomic pattern of the nerve fibers produces visual field defects: - ANS The correspond
to the location of the nerve fibers. Because the nerve fibers fan out in a specific anatomic
pattern, visual fields defects occurring in the nerve fibers also follow the same pattern. This
makes diagnosis easier because the patters are identifiable.
The "blind spot" as plotted on a visual field test corresponds to: - ANS The optic disk
The size of the average blind spot is: - ANS 5.5 degrees wide and 7.5 degrees high
On the visual field, the average blind spot is located: - ANS 15 degrees temporal to fixation
If you increase the visual field testing distance, the blind spot will: - ANS Get larger in cm but
remain the same in degrees
1 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.
, At the chiasm: - ANS At the chiasm, the nasal fiber from each eye cross over the other side.
The temporal nerve fibers do not cross, but remain on the same side.
The gland that lies in the chiasmal region and can have a direction impact on the visual is the: -
ANS Pituitary
The characteristic visual field defect due to a lesion at the chiasm is: - ANS Bitemporal
hemianopia
As the nerve fibers pass through the optic tract, they: - ANS Rotate, thus changing position
After leaving the optic tract, the nerve fibers bundle together at a "relay station" known as the: -
ANS Lateral geniculate body
The layers of the lateral geniculate body nucleus are divided so that half of the layers are made
up of crossed fibers, and half are made up of uncrossed fibers. How many layers are there? -
ANS The later geniculate body has six layers; three are crossed and three are uncrossed.
Which of the following is not true regarding the nerve fibers once they exit the lateral
geniculate body: - ANS The tract continues to rotate
Visual nerve fiber terminate at the: - ANS Occipital cortex
Visual field defects become more congruous: - ANS The closer the lesion is to the occipital
cortex
Sensory input (light impulses) on the patient's left is transmitted to the: - ANS An object on
the patient's left will stimulate the nasal retina OS and temporal retina OD. The nasal fibers from
2 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.
AND ANSWERS. VERIFIED 2026.
Each mm on the retina is equal to how many degrees on the visual field? - ANS 5 degrees
An object on the patient's right will be perceived by the patient's: - ANS An object on the
patient's right will stimulate the temporal retina of the left eye and the nasal retina of the right
eye. The foveae (plural of fovea) are used during central fixation, not for peripheral vision.
The anatomic pattern of the nerve fibers produces visual field defects: - ANS The correspond
to the location of the nerve fibers. Because the nerve fibers fan out in a specific anatomic
pattern, visual fields defects occurring in the nerve fibers also follow the same pattern. This
makes diagnosis easier because the patters are identifiable.
The "blind spot" as plotted on a visual field test corresponds to: - ANS The optic disk
The size of the average blind spot is: - ANS 5.5 degrees wide and 7.5 degrees high
On the visual field, the average blind spot is located: - ANS 15 degrees temporal to fixation
If you increase the visual field testing distance, the blind spot will: - ANS Get larger in cm but
remain the same in degrees
1 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.
, At the chiasm: - ANS At the chiasm, the nasal fiber from each eye cross over the other side.
The temporal nerve fibers do not cross, but remain on the same side.
The gland that lies in the chiasmal region and can have a direction impact on the visual is the: -
ANS Pituitary
The characteristic visual field defect due to a lesion at the chiasm is: - ANS Bitemporal
hemianopia
As the nerve fibers pass through the optic tract, they: - ANS Rotate, thus changing position
After leaving the optic tract, the nerve fibers bundle together at a "relay station" known as the: -
ANS Lateral geniculate body
The layers of the lateral geniculate body nucleus are divided so that half of the layers are made
up of crossed fibers, and half are made up of uncrossed fibers. How many layers are there? -
ANS The later geniculate body has six layers; three are crossed and three are uncrossed.
Which of the following is not true regarding the nerve fibers once they exit the lateral
geniculate body: - ANS The tract continues to rotate
Visual nerve fiber terminate at the: - ANS Occipital cortex
Visual field defects become more congruous: - ANS The closer the lesion is to the occipital
cortex
Sensory input (light impulses) on the patient's left is transmitted to the: - ANS An object on
the patient's left will stimulate the nasal retina OS and temporal retina OD. The nasal fibers from
2 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.
