Visual Acuity Assessment Quiz

<p>It moves to the right and may become less steep (A)</p> Signup and view all the answers

<p>Reduced visual acuity (B)</p> Signup and view all the answers

<p>Reduced field of view (D)</p> Signup and view all the answers

<p>Limited field size and handling limitations (A)</p> Signup and view all the answers

<p>Jaeger, N Point, and Snellen Equivalent (A)</p> Signup and view all the answers

<p>Hand Movements (HM) (D)</p> Signup and view all the answers

<p>It does not provide a reliable measure of visual acuity. (C)</p> Signup and view all the answers

<p>Less than 5% (A)</p> Signup and view all the answers

<p>It is more relevant to everyday visual tasks. (D)</p> Signup and view all the answers

<p>They are inversely proportional. (A)</p> Signup and view all the answers

<p>The score is the logarithm of the contrast sensitivity of the last group of three letters, of which at least two were read correctly. (C)</p> Signup and view all the answers

<p>Using a computer screen (D)</p> Signup and view all the answers

<p>To ensure accurate data analysis and comparison between different practitioners. (C)</p> Signup and view all the answers

<p>To assess the patient's ability to see in low-contrast conditions (A)</p> Signup and view all the answers

<p>Dimly lit room with artificial light (A)</p> Signup and view all the answers

<p>LogMAR scales allow for the use of letters of varying sizes. (A)</p> Signup and view all the answers

<p>It eliminates the possibility of confusion with LogMAR results. (B)</p> Signup and view all the answers

<p>Letter shape fidelity. (D)</p> Signup and view all the answers

<p>They result in limited letter shape fidelity due to pixellation. (B)</p> Signup and view all the answers

<p>Logarithmic Minimum Angle of Resolution (C)</p> Signup and view all the answers

<p>To explain the nature of the patient's visual impairment (D)</p> Signup and view all the answers

<p>Damage to cone photoreceptors and their neural network (A)</p> Signup and view all the answers

<p>There is no direct relationship between them. (B)</p> Signup and view all the answers

<p>To compensate for the smaller size of the letters. (A)</p> Signup and view all the answers

<p>They do not accurately measure the type of color vision loss seen in low vision patients. (C)</p> Signup and view all the answers

<p>It allows for personalized testing tailored to the individual's needs. (D)</p> Signup and view all the answers

<p>Farnsworth 100 hue and D15 tests (B)</p> Signup and view all the answers

<p>Their visual acuity is too low (B)</p> Signup and view all the answers

<p>Enlarges objects by using a system of lenses. (D)</p> Signup and view all the answers

<p>It is a miniature telescope mounted in a spectacle lens that enhances vision for distant objects. (C)</p> Signup and view all the answers

<p>A line where a person with a color deficiency sees two colors as the same. (B)</p> Signup and view all the answers

<p>The PNAC chart uses related three-, four- and five-letter words on each line. (D)</p> Signup and view all the answers

<p>40 cm (A)</p> Signup and view all the answers

<p>To assist patients who find reflected glare from the white page uncomfortable or debilitating. (C)</p> Signup and view all the answers

<p>First complete an accurate refraction, then assess near vision. (D)</p> Signup and view all the answers

<p>Increasing in +4.00 steps until desired acuity is achieved. (C)</p> Signup and view all the answers

<p>To assess the patient's ability to read at a comfortable pace and with good comprehension. (B)</p> Signup and view all the answers

<p>Printed versions have been shown to achieve comparable results to the original on-screen test. (C)</p> Signup and view all the answers

<p>To measure a patient's ability to see fine details at near distance. (D)</p> Signup and view all the answers

A common term used in the UK for extremely poor vision.

Classification of vision when movement can be detected at low acuity (less than 0.5/60).

Vision classification when a patient can perceive light but it may not have directional sensitivity.

Classification for patients who cannot perceive any light; rare (less than 5%).

A measure that assesses the contrast detection ability in vision under various conditions.

Charts used to assess vision under low contrast conditions, such as sine wave gratings.

Most daily visual tasks involve resolving low contrast details rather than high contrast.

The minimum contrast level needed for tasks like fluent and survival reading.

Variations in target designs to eliminate memorization.

Adjustable factors influencing visual test clarity.

A measurement of visual acuity using a ratio format (d/D).

A representation of visual acuity as a decimal value.

The angle at which two points can be resolved.

Logarithmic scale measuring visual acuity, based on MAR.

A method of expressing visual performance ratings.

A modern system for visual acuity testing.

Text should be 6 times larger and 30 times more contrasted than threshold levels for optimal performance.

Requires text that is 3 times larger and 10 times higher in contrast than threshold levels.

Maximized through providing optimal low vision aids to improve reading.

May need specialist lighting or electronic enhancement devices to maximize.

Reading speed remains constant until print size becomes too small for comfort.

For low vision, the reading speed curve shifts right, indicating slower speeds with conventional aids.

Using low vision aids can shift the reading speed curve back to the left, improving performance.

Historically specified in forms like Jaeger, N Point, and Snellen equivalent for assessing clarity.

An instrument for quantifying disability and discomfort glare using acuity charts.

A 12-mm hole in the BAT that allows subjects to view acuity charts.

Evaluations of visual sharpness recorded under different lighting conditions.

The brightness levels set on the BAT: 12, 100, and 400-foot Lamberts.

Strategies to reduce glare from light sources affecting vision.

A device used to soften the intensity of bright light sources.

Eyewear options, such as NoIR sun shields, to manage glare sensitivity.

Methods to quantify visual impairment and its impact on daily tasks.

Telescopes mounted low in spectacle lenses for near viewing.

Over half of U.S. states allow driving with bioptic telescopes.

Often linked to genetic red/green defects in males.

A colour vision test to assess normal vs abnormal vision.

Loss of colour vision related to damage to cone cells.

Tests become unreliable with acuity below 6/20.

Tests for detecting and differentiating acquired colour vision deficits.

Tests should be performed under controlled light conditions.

A chart used to measure visual acuity with letters of varying sizes.

A standardised chart for measuring near visual acuity using related words.

Testing of a person's ability to see things up close, usually done after an accurate refraction.

The rate at which a person can read text, assessed during vision tests.

The ability to detect differences in light and dark, important for visual acuity.

An eye exam procedure to determine the correct prescription for eyewear.

Assessing vision using one eye at a time.

Testing vision with both eyes working together.