Visual Field Testing and Other Assessments for Visual Impairments (VI)

Question 1

Which of the following describes how the Humphrey Visual Field Analyzer (HFA) assesses a patient's visual field?

Accepted Answer

Uses an automated perimeter to project light stimuli of varying intensity onto the retina and records responses

Answer

Projects light stimuli onto the retina and records responses manually

Answer

Has the patient stare at a central point while an examiner moves a light stimulus around the peripheral visual field

Question 2

Which of the following is NOT an established method of visual field testing?

Accepted Answer

Amino acid test

Answer

Goldmann perimeter

Answer

Humphrey Field Analyzer

Answer

Kinetic visual field test

Question 3

What is the primary purpose of visual field testing?

Accepted Answer

To map the extent and sensitivity of a patient's field of vision

Answer

To measure intraocular pressure

Answer

To determine the refractive error of the eye

Question 4

What is the Amsler grid test primarily used to assess?

Accepted Answer

Central vision and macular function

Answer

Peripheral vision

Answer

Color vision

Answer

Depth perception

Question 5

Which of the following is a widely used method for assessing visual acuity?

Accepted Answer

Snellen chart

Answer

Oculomotor exam

Answer

Autorefraction

Answer

Fundus examination

Question 6

What is the purpose of an ocular motility exam?

Accepted Answer

To evaluate the range of motion and coordination of eye movements

Answer

To measure intraocular pressure

Answer

To assess visual acuity

Question 7

Describe the distinction between esotropia and exotropia?

Accepted Answer

Esotropia is an inward deviation of the eye, while exotropia is an outward deviation

Answer

Esotropia is vertical deviation, while exotropia is a horizontal deviation

Answer

Esotropia is a temporary deviation, while exotropia is permanent

Question 8

What is the significance of an afferent pupillary defect?

Accepted Answer

It indicates damage to the optic nerve or retina

Answer

It indicates damage to the visual cortex

Answer

It indicates damage to the optic tract

Answer

It indicates damage to the optic chiasm

Question 9

Which of the following is the leading cause of visual impairment in children?

Accepted Answer

Refractive error

Answer

Cataracts

Answer

Glaucoma

Answer

Macular degeneration

Question 10

What is the primary objective of visual field testing?

Accepted Answer

To ascertain the extent and nature of visual impairments

Answer

To screen for potential ocular pathologies

Answer

To determine the most suitable assistive device

Question 11

Which instrument is predominantly used for visual field testing?

Accepted Answer

Humphrey visual field analyzer

Answer

Ophthalmoscope

Answer

Slit lamp

Answer

Autorefractor

Question 12

What is the primary advantage of utilizing a perimetry chart in visual field testing?

Accepted Answer

It facilitates the precise mapping of the visual field

Answer

It is less expensive than other methods

Answer

It can assess both central and peripheral vision

Question 13

What is the purpose of using a tangent screen in visual field testing?

Accepted Answer

To assess the peripheral visual field

Answer

To evaluate the fundus of the eye

Answer

To measure visual acuity

Answer

To detect color vision deficiencies

Question 14

What is the most critical factor to consider when interpreting the results of a visual field test?

Accepted Answer

The patient's medical history and clinical presentation

Answer

The technician who administered the test

Answer

The age of the patient

Answer

The type of visual field test used

Question 15

Which of the following is **not** a type of visual field defect?

Accepted Answer

Hyperopia

Answer

Hemianopia

Answer

Scotoma

Answer

Quadrantanopia

Question 16

What is the main purpose of the Humphrey visual field analyzer?

Accepted Answer

To measure the retina's sensitivity to light stimuli in different areas of the visual field.

Answer

To assess the refractive error of the eye.

Answer

To determine the intraocular pressure.

Question 17

Which of the following is a commonly used method for assessing visual acuity?

Accepted Answer

Snellen chart

Answer

Visual evoked potentials (VEPs)

Answer

Fundus photography

Answer

Ocular coherence tomography (OCT)

Question 18

Differentiate between a central and peripheral scotoma.

Accepted Answer

A central scotoma affects the central 10 degrees of the visual field, while a peripheral scotoma affects the outer 30 degrees.

Answer

A central scotoma is always larger than a peripheral scotoma.

Question 19

Why is visual field testing important for individuals with visual impairments?

Accepted Answer

To determine the extent and nature of their visual loss, guide treatment decisions, and monitor disease progression.

Answer

To diagnose specific eye diseases.

Question 20

Describe the difference between a tangent screen and a Goldman perimeter.

Accepted Answer

A tangent screen is a flat surface used to assess visual field in the central 30 degrees, while a Goldman perimeter is a bowl-shaped device that maps the visual field in all directions.

Answer

A tangent screen is more accurate than a Goldman perimeter.

Question 21

What is the significance of the Amsler grid in the assessment of visual function?

Accepted Answer

It can detect subtle changes in central vision, including metamorphopsia and scotomas.

Answer

It is used to measure visual acuity.

Answer

It is only used in children.

Question 22

Which of the following is NOT a type of visual field defect?

Accepted Answer

Macular degeneration

Answer

Tunnel vision

Answer

Scotoma

Answer

Hemianopia

Question 23

What is the primary purpose of the Humphrey visual field analyzer?

Accepted Answer

To measure the extent and sensitivity of a person's visual field.

Answer

To diagnose cataracts.

Answer

To assess the function of the optic nerve.

Question 24

What is the main purpose of using the Amsler grid?

Accepted Answer

To detect metamorphopsia (distortion of straight lines).

Answer

To assess visual fields.

Answer

To measure visual acuity.

Question 25

Which of the following is a symptom of visual field constriction?

Accepted Answer

Difficulty seeing objects to the side (peripheral vision loss).

Answer

Eye pain.

Answer

Blurred vision.

Question 26

How does a scotoma differ from a hemianopia?

Accepted Answer

A scotoma is a blind spot within the visual field, while a hemianopia is a loss of vision in one half of the visual field.

Answer

A scotoma is a temporary loss of vision, while a hemianopia is a permanent loss of vision.

Question 27

What is the primary role of an occupational therapist in the assessment of visual impairments?

Accepted Answer

To evaluate the impact of visual impairments on daily activities and provide adaptive strategies.

Answer

To prescribe eyeglasses or contact lenses.

Answer

To diagnose visual impairments.

Question 28

What is the purpose of using prisms in the evaluation of binocular vision?

Accepted Answer

To assess the alignment and coordination of the eyes.

Answer

To measure the extent of visual field loss.

Answer

To treat visual field defects.

Answer

To prevent the development of visual field defects.

Question 29

Which of the following is a contraindication for visual field testing?

Accepted Answer

Active eye infection.

Answer

Mild cognitive impairment.

Answer

Uncorrected refractive error.

Question 30

Which visual field test is specifically designed to measure the extent and nature of vision loss?

Accepted Answer

Humphrey visual field analyzer

Answer

Snellen chart

Answer

Ishihara color plates

Question 31

What is the main purpose of a Humphrey visual field analyzer?

Accepted Answer

To create a detailed map of a person's visual field, showing both the extent and sensitivity of vision.

Answer

To measure how well someone can see details at a distance.

Answer

To diagnose glaucoma by detecting specific visual field patterns.

Question 32

What is the goal of threshold testing in visual field assessment?

Accepted Answer

To find the weakest light a person can see at different points in their visual field.

Answer

To measure the size of the blind spot in the eye.

Question 33

Which type of visual field defect involves a loss of vision in the central part of the field?

Accepted Answer

Scotoma

Answer

Quadranopia

Answer

Hemianopia

Answer

Peripheral field loss

Question 34

What is the role of the blind spot in visual field assessment?

Accepted Answer

It's a normal area of no vision that helps us check if the person is looking straight ahead during the test.

Answer

It's a sign that there's a problem with their vision.

Answer

It means there's damage to the optic nerve.

Question 35

What is the main purpose of the Humphrey visual field analyzer?

Accepted Answer

To create a detailed map of a person's peripheral vision, showing how far they can see to the sides.

Answer

To assess how well someone can see colors.

Answer

To evaluate how well someone's eyes can move.

Answer

To measure how well someone can see details at a distance.

Question 36

During a visual field test, a student doesn't see a target in the upper outside part of their left eye. What might this mean?

Accepted Answer

There could be damage to the optic nerve or the part of the brain that processes vision from that area.

Answer

This is a normal variation in how far people can see to the sides.

Answer

The student might have trouble reading.

Question 37

Which of these is NOT a common assessment used to evaluate visual impairments?

Accepted Answer

Electroencephalogram (EEG)

Answer

Contrast sensitivity testing

Answer

Snellen chart

Answer

Visual acuity test

Question 38

A student with a visual impairment exhibits difficulty with glare sensitivity. What assessment would be most appropriate to quantify this issue?

Accepted Answer

Glare testing

Answer

Color vision testing

Answer

Visual field testing

Answer

Accommodation testing

Question 39

A student is suspected of having a visual impairment that affects their ability to distinguish between different colors. Which assessment would be most helpful in confirming this suspicion?

Accepted Answer

Color vision testing

Answer

Visual field testing

Answer

Contrast sensitivity testing

Answer

Visual acuity testing

Question 40

A student with a visual impairment struggles to adjust their focus between near and far objects. Which assessment would best evaluate this difficulty?

Accepted Answer

Accommodation testing

Answer

Color vision testing

Answer

Visual field testing

Question 41

What is the main difference between kinetic and static perimetry?

Accepted Answer

Kinetic perimetry uses a moving target, while static perimetry uses a stationary target.

Answer

Kinetic perimetry assesses central vision, while static perimetry assesses peripheral vision.

Answer

Kinetic perimetry is more accurate than static perimetry.

Question 42

Why is it important to assess a student's visual field?

Accepted Answer

To determine the extent of peripheral vision and identify potential visual field defects.

Answer

To evaluate the student's color vision.

Answer

To assess the student's reading ability.

Question 43

A student with a visual impairment is struggling to navigate their environment safely. Which of the following assessments would be most helpful in identifying potential mobility challenges?

Accepted Answer

Functional vision assessment

Answer

Visual field testing

Answer

Contrast sensitivity testing

Answer

Color vision testing

Question 44

Which of the following is the primary purpose of visual field testing?

Accepted Answer

To assess the extent and pattern of a person's peripheral vision

Answer

To measure the sharpness of central vision

Answer

To determine the presence of color blindness

Question 45

What does a Humphrey Visual Field Analyzer measure?

Accepted Answer

A person's ability to detect light stimuli at different points in their visual field

Answer

The curvature of the cornea

Answer

Eye pressure and risk of glaucoma

Question 46

During a visual field test, what should a patient focus on?

Accepted Answer

A central fixation point

Answer

The examiner's hand movements

Answer

Their own reflection in the machine

Answer

A flashing light in their peripheral vision

Question 47

What does a scotoma on a visual field test indicate?

Accepted Answer

An area of partial or complete vision loss

Answer

An area where the patient sees double images

Answer

An area of blurry vision

Answer

An area of heightened sensitivity to light

Question 48

Which of the following conditions can cause visual field defects?

Accepted Answer

All of the above

Answer

Stroke

Answer

Optic neuritis

Answer

Glaucoma

Question 49

What is the purpose of functional vision assessments?

Accepted Answer

To evaluate how a person uses their remaining vision in everyday life

Answer

To determine the best eyeglass prescription

Answer

To measure the size and shape of the eye

Question 50

Which of the following is an example of a functional vision assessment activity?

Accepted Answer

Observing a student navigating a classroom obstacle course

Answer

Examining the back of the eye with an ophthalmoscope

Answer

Administering a standard eye chart test

Question 51

What information does a contrast sensitivity test provide?

Accepted Answer

A person's ability to distinguish between subtle shades of gray

Answer

The smallest letter size a person can read at a distance

Answer

The ability to see clearly in low light conditions

Question 52

Which professional typically conducts formal visual field testing?

Accepted Answer

An optometrist or ophthalmologist

Answer

An occupational therapist

Answer

A school nurse

Answer

A special education teacher