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ACVREP CLVT study materials
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ACVREP CLVT practice questions

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Question 1Functional vision evaluation (visual acuity, visual fields, contrast sensitivity function, color vision, stereopsis, visual perceptual and visual motor functioning, literacy skills in reading and writing) as related to vision impairment and disability

A CLVT measures distance visual acuity using a chart with a 20/200 line. The client correctly identifies all but one optotype on that line. Which score should be recorded?

  1. 20/200 plus one
  2. Better than 20/200
  3. 20/200 minus one
  4. 20/200 with one error Correct answer.

Explanation

When a client reads a line with a single error, the acuity is still recorded as the line value; a single miss does not change the recorded line. Scoring conventions allow one error on a line without altering the recorded acuity. Recording 'plus' or 'minus' refinements is not standard for a single missed optotype on a line.

Question 2Functional vision evaluation (visual acuity, visual fields, contrast sensitivity function, color vision, stereopsis, visual perceptual and visual motor functioning, literacy skills in reading and writing) as related to vision impairment and disability

Which test is designed specifically to assess contrast sensitivity using sine-wave gratings at multiple spatial frequencies?

  1. Amsler grid
  2. Ishihara plates
  3. Cover test
  4. Vistech VCTS chart Correct answer.

Explanation

The Vistech VCTS chart presents sine-wave gratings at several spatial frequencies and contrast levels to quantify contrast sensitivity. Ishihara plates assess color vision, the Amsler grid assesses central field, and the cover test assesses ocular alignment.

Question 3Functional vision evaluation (visual acuity, visual fields, contrast sensitivity function, color vision, stereopsis, visual perceptual and visual motor functioning, literacy skills in reading and writing) as related to vision impairment and disability

During confrontation visual field testing, the examiner compares the client's peripheral detection to their own. This technique primarily provides which type of information?

  1. A gross estimate of peripheral field extent Correct answer.
  2. A measure of color discrimination
  3. A measure of macular thickness
  4. Precise quantification of scotoma area

Explanation

Confrontation testing compares the client's peripheral awareness with the examiner's and yields only a rough estimate of field loss. It cannot precisely map scotoma size or shape. Formal perimetry is required for quantification.

Question 4Functional vision evaluation (visual acuity, visual fields, contrast sensitivity function, color vision, stereopsis, visual perceptual and visual motor functioning, literacy skills in reading and writing) as related to vision impairment and disability

A client with a homonymous hemianopia affecting the right visual field is most likely to have a lesion where?

  1. Right optic nerve
  2. Right optic chiasm
  3. Left optic tract or optic radiation Correct answer.
  4. Left eye only

Explanation

Homonymous field defects arise from retrochiasmal lesions on the side opposite the field loss. A right homonymous hemianopia therefore points to a left-sided tract, radiation, or occipital lesion. Prechiasmal and chiasmal lesions produce monocular or bitemporal patterns.

Question 5Functional vision evaluation (visual acuity, visual fields, contrast sensitivity function, color vision, stereopsis, visual perceptual and visual motor functioning, literacy skills in reading and writing) as related to vision impairment and disability

Which color vision test requires the client to arrange caps in order and is sensitive to acquired color vision defects?

  1. Farnsworth-Munsell 100 Hue test Correct answer.
  2. Hardy-Rand-Rittler plates
  3. Ishihara 38-plate test
  4. Red cap test

Explanation

The Farnsworth-Munsell 100 Hue test requires ordering colored caps by hue and provides detailed information about the type and severity of color discrimination loss, including acquired defects. Plate tests such as Ishihara and HRR screen for congenital red-green defects.

Question 6Functional vision evaluation (visual acuity, visual fields, contrast sensitivity function, color vision, stereopsis, visual perceptual and visual motor functioning, literacy skills in reading and writing) as related to vision impairment and disability

A client reports double vision when reading at near. Which assessment would best help determine whether the diplopia is due to a binocular alignment problem?

  1. Contrast sensitivity testing
  2. Amsler grid testing
  3. Color vision testing
  4. Cover-uncover and alternate cover testing Correct answer.

Explanation

Cover tests detect and quantify strabismus, which is a common cause of binocular diplopia. If diplopia disappears when one eye is covered, the cause is misalignment. Contrast, Amsler, and color tests do not evaluate ocular alignment.

Question 7Functional vision evaluation (visual acuity, visual fields, contrast sensitivity function, color vision, stereopsis, visual perceptual and visual motor functioning, literacy skills in reading and writing) as related to vision impairment and disability

Stereoacuity testing with the Titmus fly primarily evaluates which function?

  1. Monocular acuity
  2. Peripheral field extent
  3. Binocular depth perception Correct answer.
  4. Color discrimination

Explanation

Stereoacuity tests measure binocular depth perception arising from retinal disparity. The Titmus fly is a gross stereopsis screening target. Monocular acuity, visual fields, and color vision are assessed with different instruments.

Question 8Functional vision evaluation (visual acuity, visual fields, contrast sensitivity function, color vision, stereopsis, visual perceptual and visual motor functioning, literacy skills in reading and writing) as related to vision impairment and disability

A client with low vision reads large print slowly and loses place frequently. Which area of evaluation is most directly indicated?

  1. Color vision
  2. Contrast sensitivity only
  3. Stereopsis
  4. Literacy skills and reading efficiency Correct answer.

Explanation

Slow reading and loss of place point to difficulties with reading efficiency and literacy, which require assessment of reading rate, tracking, and comprehension. Contrast sensitivity may contribute but does not directly evaluate reading behavior. Stereopsis and color vision are unrelated to the described difficulty.

Question 9Functional vision evaluation (visual acuity, visual fields, contrast sensitivity function, color vision, stereopsis, visual perceptual and visual motor functioning, literacy skills in reading and writing) as related to vision impairment and disability

Which finding on a visual perceptual assessment most directly suggests a problem with visual-spatial orientation?

  1. Reduced contrast sensitivity
  2. Reduced distance acuity
  3. Difficulty naming colors
  4. Difficulty copying a complex geometric figure Correct answer.

Explanation

Copying a complex figure requires spatial analysis and organization, so errors suggest visual-spatial or constructional difficulty. Color naming, acuity, and contrast sensitivity reflect sensory rather than perceptual-spatial functions.

Question 10Functional vision evaluation (visual acuity, visual fields, contrast sensitivity function, color vision, stereopsis, visual perceptual and visual motor functioning, literacy skills in reading and writing) as related to vision impairment and disability

A CLVT wants to document a client's ability to use remaining vision for a functional task. Which approach best reflects a functional vision evaluation?

  1. Recording only Snellen acuity
  2. Recording only the spectacle prescription
  3. Observing the client locate and read a label in the actual environment Correct answer.
  4. Measuring only pupillary responses

Explanation

Functional vision evaluation examines how the person uses vision in real tasks and environments, not just clinical thresholds. Observing a real-world task such as locating and reading a label captures performance in context. Acuity alone, pupil responses, and prescriptions do not describe functional performance.

Question 11Functional vision evaluation (visual acuity, visual fields, contrast sensitivity function, color vision, stereopsis, visual perceptual and visual motor functioning, literacy skills in reading and writing) as related to vision impairment and disability

A client with reduced contrast sensitivity but normal high-contrast acuity is likely to report difficulty in which situation?

  1. Detecting a bright light source
  2. Reading black text on white paper in bright light
  3. Identifying large high-contrast signs
  4. Seeing steps in dim hallway lighting Correct answer.

Explanation

Contrast sensitivity governs detection of low-contrast targets, such as step edges in dim light. High-contrast acuity can remain normal while contrast thresholds are elevated. Bright, high-contrast targets remain easier to see.

Question 12Functional vision evaluation (visual acuity, visual fields, contrast sensitivity function, color vision, stereopsis, visual perceptual and visual motor functioning, literacy skills in reading and writing) as related to vision impairment and disability

Which perimetry method is most appropriate when a client cannot reliably maintain fixation for standard automated perimetry?

  1. Amsler grid only
  2. Optical coherence tomography
  3. Kinetic manual perimetry with close monitoring Correct answer.
  4. Standard automated perimetry

Explanation

Kinetic manual perimetry allows the examiner to monitor fixation closely and adapt testing to the client's reliability. Standard automated perimetry depends on stable fixation and reliable responses. OCT and Amsler testing do not map the full visual field.

Question 13Functional vision evaluation (visual acuity, visual fields, contrast sensitivity function, color vision, stereopsis, visual perceptual and visual motor functioning, literacy skills in reading and writing) as related to vision impairment and disability

A client consistently misidentifies red and green caps on an arrangement test but has normal acuity and fields. This pattern most suggests which type of defect?

  1. Acquired blue-yellow defect
  2. Peripheral field loss
  3. Reduced stereopsis
  4. Congenital red-green defect Correct answer.

Explanation

Red-green confusion with normal acuity and fields is characteristic of congenital red-green color vision deficiency. Acquired defects more often involve blue-yellow losses and accompany other ocular disease. Field loss and stereopsis are separate functions.

Question 14Functional vision evaluation (visual acuity, visual fields, contrast sensitivity function, color vision, stereopsis, visual perceptual and visual motor functioning, literacy skills in reading and writing) as related to vision impairment and disability

When evaluating visual motor integration, which task is most appropriate?

  1. Reading a Snellen chart
  2. Reporting phosphenes
  3. Naming colors on a plate
  4. Tracing a geometric path with a pencil Correct answer.

Explanation

Visual motor integration involves coordinating visual information with motor output, such as tracing or copying. Color naming, acuity chart reading, and phosphene reports do not assess eye-hand coordination.

Question 15Functional vision evaluation (visual acuity, visual fields, contrast sensitivity function, color vision, stereopsis, visual perceptual and visual motor functioning, literacy skills in reading and writing) as related to vision impairment and disability

A client with a central scotoma wants to read standard print. Which evaluation finding is most important for predicting reading success?

  1. Preferred retinal locus and eccentric viewing skill Correct answer.
  2. Normal stereopsis
  3. Intact peripheral field only
  4. Normal color vision

Explanation

With central vision loss, reading depends on establishing and using a preferred retinal locus and eccentric viewing. Peripheral field alone, stereopsis, and color vision do not predict reading performance as directly.

Question 16Functional vision evaluation (visual acuity, visual fields, contrast sensitivity function, color vision, stereopsis, visual perceptual and visual motor functioning, literacy skills in reading and writing) as related to vision impairment and disability

Which statement best describes the purpose of a functional vision evaluation in a client with vision impairment?

  1. To describe how vision affects daily activities and guide intervention Correct answer.
  2. To determine refractive error only
  3. To replace a medical eye examination
  4. To measure intraocular pressure

Explanation

Functional vision evaluation describes the impact of vision on everyday tasks and informs rehabilitation planning. It complements, but does not replace, medical eye care. Intraocular pressure and refraction are medical/optical measures.

Question 17Functional vision evaluation (visual acuity, visual fields, contrast sensitivity function, color vision, stereopsis, visual perceptual and visual motor functioning, literacy skills in reading and writing) as related to vision impairment and disability

A client reads the 20/40 line at distance but reports that newspaper print is unreadable. Which factor should the CLVT evaluate first?

  1. Color vision
  2. Stereopsis
  3. Pupil size only
  4. Near visual acuity and working distance Correct answer.

Explanation

Difficulty with near print despite adequate distance acuity points to near acuity, accommodation, or working distance issues. Near acuity must be measured at the client's typical reading distance. Color vision, stereopsis, and pupil size do not directly explain the discrepancy.

Question 18Functional vision evaluation (visual acuity, visual fields, contrast sensitivity function, color vision, stereopsis, visual perceptual and visual motor functioning, literacy skills in reading and writing) as related to vision impairment and disability

Which technique would a CLVT use to assess a client's ability to write legibly with low vision?

  1. Performing a cover test
  2. Testing stereoacuity
  3. Observing signature and form completion with adapted materials Correct answer.
  4. Measuring contrast sensitivity

Explanation

Writing assessment involves observing real writing tasks such as signing or completing forms using the client's adapted materials. Stereoacuity, contrast sensitivity, and cover testing assess other visual functions.

Question 19Functional vision evaluation (visual acuity, visual fields, contrast sensitivity function, color vision, stereopsis, visual perceptual and visual motor functioning, literacy skills in reading and writing) as related to vision impairment and disability

A client's visual field shows a left homonymous superior quadrantanopia. Which area of the brain is most likely involved?

  1. Right temporal lobe (Meyer's loop) Correct answer.
  2. Optic chiasm
  3. Left optic nerve
  4. Right parietal lobe

Explanation

A superior homonymous quadrantanopia corresponds to inferior optic radiation fibers in Meyer's loop within the temporal lobe, contralateral to the field loss. A right temporal lesion produces a left superior defect. Optic nerve and chiasm lesions do not produce quadrantanopias.

Question 20Functional vision evaluation (visual acuity, visual fields, contrast sensitivity function, color vision, stereopsis, visual perceptual and visual motor functioning, literacy skills in reading and writing) as related to vision impairment and disability

A client with vision impairment shows difficulty interpreting facial expressions despite adequate acuity. Which domain of evaluation does this most directly concern?

  1. Contrast sensitivity
  2. Visual perceptual functioning Correct answer.
  3. Stereopsis
  4. Color vision

Explanation

Interpreting facial expressions relies on visual perceptual and cognitive processing of visual information. Acuity may be adequate while perceptual interpretation is impaired. Contrast sensitivity, stereopsis, and color vision address different functions.

Question 21Functional vision evaluation (visual acuity, visual fields, contrast sensitivity function, color vision, stereopsis, visual perceptual and visual motor functioning, literacy skills in reading and writing) as related to vision impairment and disability

Which reading assessment approach best captures a client's functional literacy in daily life?

  1. Measuring stereoacuity
  2. Reading isolated letters on an acuity chart
  3. Measuring color matching
  4. Reading authentic materials such as mail, labels, and forms Correct answer.

Explanation

Functional literacy is best assessed with authentic materials that reflect daily reading demands. Isolated letters measure acuity, not literacy. Stereoacuity and color matching assess unrelated visual functions.

Question 22Functional vision evaluation (visual acuity, visual fields, contrast sensitivity function, color vision, stereopsis, visual perceptual and visual motor functioning, literacy skills in reading and writing) as related to vision impairment and disability

A CLVT is selecting a contrast sensitivity test for a client who cannot name letters. Which feature of the test is most important?

  1. Non-letter targets such as gratings or symbols Correct answer.
  2. Stereo targets
  3. Letter optotypes at high contrast
  4. Color plates

Explanation

For clients who cannot name letters, contrast tests using gratings or symbols allow measurement without letter recognition. High-contrast letter optotypes, color plates, and stereo targets do not measure contrast thresholds in this population.

Question 23Functional vision evaluation (visual acuity, visual fields, contrast sensitivity function, color vision, stereopsis, visual perceptual and visual motor functioning, literacy skills in reading and writing) as related to vision impairment and disability

Which finding most strongly suggests that a client's reported visual difficulty is functional rather than explained by measured acuity alone?

  1. Stable acuity across repeated measures
  2. Acuity matches the reported difficulty
  3. Performance varies markedly across tasks and environments Correct answer.
  4. Consistent contrast sensitivity results

Explanation

Marked variability across tasks and settings suggests that factors beyond acuity, such as perceptual, cognitive, or environmental influences, affect performance. Consistent measures that match reported difficulty indicate a more direct relationship.

Question 24Functional vision evaluation (visual acuity, visual fields, contrast sensitivity function, color vision, stereopsis, visual perceptual and visual motor functioning, literacy skills in reading and writing) as related to vision impairment and disability

A client with vision impairment reports bumping into objects on the left side but not the right. Which evaluation is most directly indicated?

  1. Contrast sensitivity testing
  2. Color vision testing
  3. Visual field testing Correct answer.
  4. Stereopsis testing

Explanation

Bumping into objects on one side suggests a field defect on that side, so visual field testing is indicated. Color, stereo, and contrast testing do not localize field loss.

Question 25Functional vision evaluation (visual acuity, visual fields, contrast sensitivity function, color vision, stereopsis, visual perceptual and visual motor functioning, literacy skills in reading and writing) as related to vision impairment and disability

Which statement about stereoacuity thresholds is accurate?

  1. Stereoacuity is unrelated to binocular alignment
  2. Stereoacuity is measured monocularly
  3. Larger disparities are easier to detect than smaller disparities Correct answer.
  4. Smaller disparities are easier to detect than larger disparities

Explanation

Stereoacuity testing presents retinal disparities; larger disparities produce more detectable depth and smaller disparities require finer stereopsis. Stereoacuity depends on binocular alignment and is by definition a binocular function.

Question 26Functional vision evaluation (visual acuity, visual fields, contrast sensitivity function, color vision, stereopsis, visual perceptual and visual motor functioning, literacy skills in reading and writing) as related to vision impairment and disability

A CLVT is measuring distance visual acuity in a client who wears prescription glasses for a refractive error. Which practice yields the most valid acuity measurement?

  1. Test with the glasses removed to measure uncorrected acuity only
  2. Test with the client wearing the usual distance correction Correct answer.
  3. Test with a pinhole over the glasses to sharpen the image
  4. Test at half the standard distance and double the recorded value

Explanation

Functional distance acuity should be measured under the client's typical viewing conditions, so the habitual correction is worn. Uncorrected and pinhole measurements are supplementary and do not represent everyday function.

Question 27Functional vision evaluation (visual acuity, visual fields, contrast sensitivity function, color vision, stereopsis, visual perceptual and visual motor functioning, literacy skills in reading and writing) as related to vision impairment and disability

Which test design feature makes the Pelli-Robson chart a measure of contrast sensitivity rather than acuity?

  1. It uses progressively smaller letters at a fixed high contrast
  2. It uses colored letters against a gray background
  3. It uses letters of a fixed large size whose contrast decreases across the chart Correct answer.
  4. It uses flickering lights at varying frequencies

Explanation

Contrast sensitivity charts hold letter size constant while varying contrast, isolating the ability to detect low-contrast targets. Acuity charts instead vary size at a constant high contrast.

Question 28Functional vision evaluation (visual acuity, visual fields, contrast sensitivity function, color vision, stereopsis, visual perceptual and visual motor functioning, literacy skills in reading and writing) as related to vision impairment and disability

During confrontation visual field testing, the examiner brings a target from the periphery toward fixation in each quadrant. What is the primary purpose of this technique?

  1. To measure the density of a central scotoma
  2. To estimate the extent of the peripheral field in each quadrant Correct answer.
  3. To assess the accuracy of saccadic eye movements
  4. To determine the client's color discrimination threshold

Explanation

Confrontation testing compares the client's peripheral detection with the examiner's in each quadrant, giving a rough estimate of field extent. It is a screening method, not a precise mapping of scotomas.

Question 29Functional vision evaluation (visual acuity, visual fields, contrast sensitivity function, color vision, stereopsis, visual perceptual and visual motor functioning, literacy skills in reading and writing) as related to vision impairment and disability

Which finding on a color vision test most strongly suggests an acquired rather than a congenital color vision defect?

  1. Asymmetric results between the two eyes Correct answer.
  2. A stable pattern present since childhood
  3. Equal results between the two eyes
  4. A defect that follows a predictable inheritance pattern

Explanation

Acquired color vision loss is often asymmetric and may vary over time, reflecting ocular or neurologic disease. Congenital defects are typically symmetric, stable, and follow inheritance patterns.

Question 30Functional vision evaluation (visual acuity, visual fields, contrast sensitivity function, color vision, stereopsis, visual perceptual and visual motor functioning, literacy skills in reading and writing) as related to vision impairment and disability

A CLVT is evaluating a client's ability to read medication labels. Which approach best reflects functional literacy assessment?

  1. Administer a standardized reading test using unrelated sentences
  2. Ask the client to read single isolated letters at the closest possible distance
  3. Measure reading speed using a high-contrast chart at a fixed distance
  4. Ask the client to read actual labels under typical lighting with their usual optical devices Correct answer.

Explanation

Functional literacy assessment uses real materials under realistic conditions to show whether the client can perform a meaningful daily task. Isolated letters or unrelated text do not capture this functional performance.

Question 31Functional vision evaluation (visual acuity, visual fields, contrast sensitivity function, color vision, stereopsis, visual perceptual and visual motor functioning, literacy skills in reading and writing) as related to vision impairment and disability

Which task is most appropriate for evaluating a client's near visual acuity?

  1. Reading a near chart at a standard working distance with the appropriate correction Correct answer.
  2. Identifying letters on a distance chart from six meters
  3. Detecting a moving target in the peripheral field
  4. Matching colored caps in a fixed order

Explanation

Near acuity is measured with a near chart at a controlled working distance, using the correction the client would normally wear for near tasks. Distance charts and field or color tasks do not measure near resolution.

Question 32Functional vision evaluation (visual acuity, visual fields, contrast sensitivity function, color vision, stereopsis, visual perceptual and visual motor functioning, literacy skills in reading and writing) as related to vision impairment and disability

A client with vision impairment is asked to copy geometric shapes and trace a path between lines. Which domain of function do these tasks primarily sample?

  1. Visual field extent
  2. Contrast sensitivity
  3. Color discrimination
  4. Visual motor integration Correct answer.

Explanation

Copying shapes and tracing require the coordination of visual perception with motor output, which defines visual motor integration. The other domains are sensory measures rather than visuomotor performance.

Question 33Functional vision evaluation (visual acuity, visual fields, contrast sensitivity function, color vision, stereopsis, visual perceptual and visual motor functioning, literacy skills in reading and writing) as related to vision impairment and disability

Which statement accurately describes a normal stereoacuity threshold?

  1. Normal stereoacuity is typically around 400 to 600 seconds of arc
  2. Normal stereoacuity cannot be quantified in seconds of arc
  3. Normal stereoacuity is typically around 40 to 60 seconds of arc or better Correct answer.
  4. Normal stereoacuity is typically around 4000 seconds of arc

Explanation

Stereoacuity is expressed in seconds of arc, and normal values are on the order of 40 to 60 seconds of arc or better. Larger values indicate reduced stereopsis.

Question 34Functional vision evaluation (visual acuity, visual fields, contrast sensitivity function, color vision, stereopsis, visual perceptual and visual motor functioning, literacy skills in reading and writing) as related to vision impairment and disability

A client with a central scotoma reports that print disappears when they look directly at it. Which evaluation result most directly explains this difficulty?

  1. A peripheral field constriction with intact central vision
  2. A dense scotoma encroaching on the fovea Correct answer.
  3. Reduced stereoacuity with normal acuity
  4. A mild color vision deficiency

Explanation

Foveal involvement in a central scotoma removes the region used for detailed resolution, so direct fixation causes print to disappear. Peripheral constriction or color defects do not produce this pattern.

Question 35Functional vision evaluation (visual acuity, visual fields, contrast sensitivity function, color vision, stereopsis, visual perceptual and visual motor functioning, literacy skills in reading and writing) as related to vision impairment and disability

A CLVT needs to assess contrast sensitivity in a client who cannot read letters or recognize symbols. Which test characteristic is most important to select for?

  1. A test requiring the client to read sentences aloud
  2. A test requiring the client to name colors
  3. A test using small letters at high contrast
  4. A test using grating patterns with a forced-choice detection task Correct answer.

Explanation

Grating-based tests with simple detection responses reduce reliance on letter naming and recognition, making them suitable for clients who cannot identify optotypes. Letter, color naming, and reading tasks all require skills the client lacks.

Question 36Functional vision evaluation (visual acuity, visual fields, contrast sensitivity function, color vision, stereopsis, visual perceptual and visual motor functioning, literacy skills in reading and writing) as related to vision impairment and disability

A client reports bumping into objects on the left side during mobility. Which evaluation would most directly confirm a left visual field loss?

  1. A color arrangement test using caps
  2. Formal perimetry mapping the extent of the left hemifield Correct answer.
  3. A near acuity chart at standard distance
  4. A stereoacuity test using random dot patterns

Explanation

Perimetry maps the field and can confirm and characterize a left-sided defect that would explain collisions on that side. Acuity, stereoacuity, and color tests do not localize field loss.

Question 37Functional vision evaluation (visual acuity, visual fields, contrast sensitivity function, color vision, stereopsis, visual perceptual and visual motor functioning, literacy skills in reading and writing) as related to vision impairment and disability

A client with reduced contrast sensitivity but normal high-contrast acuity is likely to have the most difficulty with which task?

  1. Reading black text on a white page in bright light
  2. Reading a menu printed on dark paper in dim restaurant lighting Correct answer.
  3. Identifying large high-contrast letters at distance
  4. Detecting a bright light in the periphery

Explanation

Low-contrast conditions, such as dark print on dark paper in dim light, place demands on contrast sensitivity rather than resolution. High-contrast, well-lit materials remain readable when acuity is normal.

Question 38Functional vision evaluation (visual acuity, visual fields, contrast sensitivity function, color vision, stereopsis, visual perceptual and visual motor functioning, literacy skills in reading and writing) as related to vision impairment and disability

A client with homonymous hemianopia is being evaluated for reading. Which reading error pattern is most characteristic of this field loss?

  1. Reversing letters within words regardless of line position
  2. Missing the beginning or end of lines on the side of the field loss Correct answer.
  3. Losing place because of impaired color discrimination
  4. Reading slowly only because of reduced acuity

Explanation

Homonymous hemianopia removes one side of the field, so the client may omit line beginnings or endings on the affected side. Letter reversals and color-related errors have different causes.

Question 39Functional vision evaluation (visual acuity, visual fields, contrast sensitivity function, color vision, stereopsis, visual perceptual and visual motor functioning, literacy skills in reading and writing) as related to vision impairment and disability

When documenting a client's functional use of remaining vision, which approach is most appropriate?

  1. Record only the Snellen acuity value obtained at distance
  2. Record the client's self-report without any observed task performance
  3. Record the results of a single color vision screening test
  4. Record observed performance on meaningful tasks with the client's own devices Correct answer.

Explanation

Functional documentation should describe what the client actually does with vision on real tasks, using their own devices and typical conditions. Isolated clinical values or self-report alone do not capture functional performance.

Question 40Functional vision evaluation (visual acuity, visual fields, contrast sensitivity function, color vision, stereopsis, visual perceptual and visual motor functioning, literacy skills in reading and writing) as related to vision impairment and disability

A client reads the distance chart well but reports that newspaper print is unreadable. Which factor should the CLVT evaluate first?

  1. Color discrimination with arrangement caps
  2. Stereopsis with random dot tests
  3. Distance acuity under glare conditions
  4. Near visual acuity and reading add or magnification needs Correct answer.

Explanation

A discrepancy between good distance acuity and poor near reading points to a near-vision problem such as inadequate near correction or magnification. Near acuity and reading needs should be evaluated before unrelated sensory domains.

Question 41Functional vision evaluation (visual acuity, visual fields, contrast sensitivity function, color vision, stereopsis, visual perceptual and visual motor functioning, literacy skills in reading and writing) as related to vision impairment and disability

A client with vision impairment has adequate acuity but struggles to interpret facial expressions and locate objects in a cluttered room. Which domain of evaluation is most relevant?

  1. Visual perceptual functioning Correct answer.
  2. Color vision discrimination
  3. Contrast sensitivity threshold
  4. Stereoacuity threshold

Explanation

Interpreting expressions and finding objects in clutter depend on perceptual organization and interpretation of visual information, which fall under visual perceptual functioning. The other options are basic sensory thresholds.

Question 42Functional vision evaluation (visual acuity, visual fields, contrast sensitivity function, color vision, stereopsis, visual perceptual and visual motor functioning, literacy skills in reading and writing) as related to vision impairment and disability

A CLVT is selecting a stereoacuity test for a client who has strabismus with suppression. Which test feature is most important?

  1. A test that measures acuity with one eye covered
  2. A test that uses dissociating targets to reveal suppression or abnormal correspondence Correct answer.
  3. A test that measures contrast detection thresholds
  4. A test that presents a single monocular image to each eye separately

Explanation

In strabismus with suppression, dissociating tests can reveal suppression scotomas or abnormal retinal correspondence that influence stereoacuity results. Monocular acuity or contrast tests do not assess binocular status.

Question 43Functional vision evaluation (visual acuity, visual fields, contrast sensitivity function, color vision, stereopsis, visual perceptual and visual motor functioning, literacy skills in reading and writing) as related to vision impairment and disability

A client's reading evaluation shows that single words are read accurately but connected text is slow and effortful. Which area should the CLVT evaluate next?

  1. Peripheral field extent using confrontation
  2. Stereoacuity using polarized glasses
  3. Ocular motor control and tracking during reading Correct answer.
  4. Color discrimination using arrangement caps

Explanation

Accurate single-word reading with poor connected-text reading suggests difficulty with tracking and scanning across lines. Ocular motor evaluation during reading addresses this pattern. The other tests assess unrelated sensory functions.

Question 44Functional vision evaluation (visual acuity, visual fields, contrast sensitivity function, color vision, stereopsis, visual perceptual and visual motor functioning, literacy skills in reading and writing) as related to vision impairment and disability

A client with a visual field defect reports that they do not notice objects on one side even when looking straight ahead. Which concept best describes this phenomenon?

  1. Inattentional or neglect-like unawareness of the field loss Correct answer.
  2. Impaired color discrimination in the affected field
  3. Reduced stereoacuity in the affected field
  4. Reduced contrast sensitivity in the affected field

Explanation

Some clients fail to notice or compensate for a field defect, a phenomenon related to awareness and attention rather than the sensory loss alone. Contrast, color, and stereoacuity reductions do not describe this unawareness.

Question 45Functional vision evaluation (visual acuity, visual fields, contrast sensitivity function, color vision, stereopsis, visual perceptual and visual motor functioning, literacy skills in reading and writing) as related to vision impairment and disability

A CLVT is assessing a client's ability to write with low vision. Which method provides the most useful information?

  1. Measure the client's distance acuity only
  2. Ask the client to copy a single letter at maximum magnification
  3. Observe the client writing a meaningful sentence under typical lighting with their usual devices Correct answer.
  4. Assess color discrimination with a cap arrangement

Explanation

Writing is a functional task that should be observed under realistic conditions with the client's own devices. Isolated letters, distance acuity, or color tests do not show how well the client writes in daily life.

Question 46Functional vision evaluation (visual acuity, visual fields, contrast sensitivity function, color vision, stereopsis, visual perceptual and visual motor functioning, literacy skills in reading and writing) as related to vision impairment and disability

A client with a left homonymous superior quadrantanopia is most likely to have a lesion in which location?

  1. Right temporal lobe Correct answer.
  2. Left temporal lobe
  3. Right inferior occipital lobe
  4. Left inferior parietal lobe

Explanation

A left superior homonymous quadrantanopia reflects damage to the right inferior visual pathway, including Meyer's loop in the temporal lobe. The other locations would produce different field patterns.

Question 47Functional vision evaluation (visual acuity, visual fields, contrast sensitivity function, color vision, stereopsis, visual perceptual and visual motor functioning, literacy skills in reading and writing) as related to vision impairment and disability

A client with normal visual acuity and fields reports persistent difficulty recognizing familiar faces. Which evaluation finding would most support a perceptual rather than sensory explanation?

  1. A dense central scotoma affecting fixation
  2. Reduced stereoacuity with normal acuity
  3. Reduced contrast sensitivity with intact face recognition
  4. Intact basic sensory measures with impaired performance on face and object recognition tasks Correct answer.

Explanation

When basic sensory measures are intact but recognition tasks are impaired, the deficit is perceptual rather than sensory. Scotomas, contrast loss, or stereoacuity reduction would indicate a sensory contribution.

Question 48Functional vision evaluation (visual acuity, visual fields, contrast sensitivity function, color vision, stereopsis, visual perceptual and visual motor functioning, literacy skills in reading and writing) as related to vision impairment and disability

A CLVT is interpreting reading performance in a client with age-related macular degeneration. Which combination of findings best predicts functional reading ability?

  1. Distance acuity alone
  2. Stereoacuity alone
  3. Color discrimination alone
  4. Near acuity, scotoma location, and contrast sensitivity together Correct answer.

Explanation

Reading with macular disease depends on near resolution, the position of the scotoma relative to fixation, and contrast sensitivity, so these must be interpreted together. Any single measure gives an incomplete picture.

Question 49Functional vision evaluation (visual acuity, visual fields, contrast sensitivity function, color vision, stereopsis, visual perceptual and visual motor functioning, literacy skills in reading and writing) as related to vision impairment and disability

A client with vision impairment shows accurate detection of a target but misjudges its location when reaching for it. Which evaluation finding best explains this pattern?

  1. Reduced stereoacuity with intact localization
  2. Intact detection with impaired visual localization on reaching tasks Correct answer.
  3. Reduced color discrimination with intact localization
  4. Reduced contrast sensitivity with intact localization

Explanation

Accurate detection with inaccurate reaching indicates a problem with visual localization and visuomotor guidance rather than detection itself. Contrast, color, and stereoacuity reductions do not specifically impair localization.

Question 50Functional vision evaluation (visual acuity, visual fields, contrast sensitivity function, color vision, stereopsis, visual perceptual and visual motor functioning, literacy skills in reading and writing) as related to vision impairment and disability

A CLVT is comparing two contrast sensitivity tests for a client with a suspected early cataract. Which consideration is most relevant to test selection?

  1. The test's dependence on stereoacuity thresholds
  2. The test's sensitivity to optical factors such as glare and light scatter Correct answer.
  3. The test's requirement for a distance acuity chart
  4. The test's ability to measure color discrimination

Explanation

Cataracts cause light scatter and glare that reduce contrast sensitivity, so a test sensitive to optical factors is most informative. Color, stereoacuity, and distance acuity charts do not isolate this effect.