TERMIUM Plus®
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DISTANCE ACUITY [5 records]
Record 1 - internal organization data 2026-02-18
Record 1, English
Record 1, Subject field(s)
- Diagnostic Procedures (Medicine)
- The Eye
Record 1, Main entry term, English
- visual acuity test
1, record 1, English, visual%20acuity%20test
correct, noun
Record 1, Abbreviations, English
Record 1, Synonyms, English
- visual acuity exam 2, record 1, English, visual%20acuity%20exam
correct, noun
Record 1, Textual support, English
Record number: 1, Textual support number: 1 CONT
A visual acuity test is only one part of a comprehensive ophthalmologic examination. The goal of the visual acuity test is to determine the visual clarity or sharpness of vision of a patient. This is tested using the ability to distinguish different optotypes(stylized letters or symbols) at a standard distance. 3, record 1, English, - visual%20acuity%20test
Record 1, French
Record 1, Domaine(s)
- Méthodes diagnostiques (Médecine)
- Oeil
Record 1, Main entry term, French
- test d'acuité visuelle
1, record 1, French, test%20d%27acuit%C3%A9%20visuelle
correct, masculine noun
Record 1, Abbreviations, French
Record 1, Synonyms, French
- examen d'acuité visuelle 2, record 1, French, examen%20d%27acuit%C3%A9%20visuelle
correct, masculine noun
Record 1, Textual support, French
Record number: 1, Textual support number: 1 CONT
Le patient s'assied sur une chaise à une distance de cinq mètres d'un écran sur lequel seront projetés des «optotypes» [...] L'ophtalmologiste ou l'orthoptiste mesure ensuite l'acuité visuelle de près et de loin, avec ou sans lunettes et pour chaque œil. À chaque étape, un œil est couvert pendant que l'autre déchiffre les optotypes projetés sur l'écran. Il commence par les plus grands caractères pour essayer ensuite de lire les plus petits. À chaque ligne, le médecin note les capacités de l'œil. Le même examen est fait avec l'autre œil, puis en binoculaire, c'est-à-dire avec les deux yeux. 1, record 1, French, - test%20d%27acuit%C3%A9%20visuelle
Record 1, Spanish
Record 1, Textual support, Spanish
Record 2 - internal organization data 2026-02-18
Record 2, English
Record 2, Subject field(s)
- Medical Instruments and Devices
- Diagnostic Procedures (Medicine)
- The Eye
Record 2, Main entry term, English
- Snellen eye chart
1, record 2, English, Snellen%20eye%20chart
correct, noun
Record 2, Abbreviations, English
Record 2, Synonyms, English
- Snellen chart 2, record 2, English, Snellen%20chart
correct, noun
Record 2, Textual support, English
Record number: 2, Textual support number: 1 CONT
The Snellen chart serves as a portable tool to quickly assess monocular and binocular visual acuity.... The Snellen chart uses a geometric scale to measure visual acuity, with normal vision at a distance being set at 20/20. A standard Snellen eye chart is 22 inches wide by 11 inches tall. The numerator represents the distance that the patient is standing from the chart(in feet), while the denominator represents the distance from which a person with perfect eyesight is still able to read the smallest line that the patient can clearly visualize. 1, record 2, English, - Snellen%20eye%20chart
Record 2, French
Record 2, Domaine(s)
- Instruments et appareillages médicaux
- Méthodes diagnostiques (Médecine)
- Oeil
Record 2, Main entry term, French
- échelle de Snellen
1, record 2, French, %C3%A9chelle%20de%20Snellen
correct, feminine noun
Record 2, Abbreviations, French
Record 2, Synonyms, French
- tableau de Snellen 2, record 2, French, tableau%20de%20Snellen
correct, masculine noun
Record 2, Textual support, French
Record number: 2, Textual support number: 1 CONT
Le tableau de Snellen, composé de lettres ou de symboles de différentes tailles, est le principal outil d'évaluation de l'acuité visuelle. Lors d'un examen oculaire, on demande à un individu de lire les lettres du tableau à une distance donnée, généralement 20 pieds dans le cas de l'évaluation de la vision 20/20. La fraction représente le rapport entre la distance entre le sujet et le tableau et la distance à laquelle une personne ayant une vision «normale» peut lire la même ligne de lettres. 3, record 2, French, - %C3%A9chelle%20de%20Snellen
Record 2, Spanish
Record 2, Textual support, Spanish
Record 3 - internal organization data 2020-02-17
Record 3, English
Record 3, Subject field(s)
- The Eye
Record 3, Main entry term, English
- distance vision
1, record 3, English, distance%20vision
correct
Record 3, Abbreviations, English
Record 3, Synonyms, English
- distance acuity 2, record 3, English, distance%20acuity
correct
- distant visual acuity 3, record 3, English, distant%20visual%20acuity
correct
- distant vision acuity 4, record 3, English, distant%20vision%20acuity
correct
Record 3, Textual support, English
Record number: 3, Textual support number: 1 DEF
The ability to register optical details of objects that are far from the eye, e.g., on a chart positioned 20 [feet] away from the viewer in a test of visual acuity. 5, record 3, English, - distance%20vision
Record number: 3, Textual support number: 1 CONT
The reciprocal of distance acuity may be used to determine the approximate strength of the initial trial lens for near vision... 6, record 3, English, - distance%20vision
Record 3, French
Record 3, Domaine(s)
- Oeil
Record 3, Main entry term, French
- acuité visuelle de loin
1, record 3, French, acuit%C3%A9%20visuelle%20de%20loin
correct, feminine noun
Record 3, Abbreviations, French
Record 3, Synonyms, French
- acuité de loin 2, record 3, French, acuit%C3%A9%20de%20loin
correct, feminine noun
- acuité visuelle en vision de loin 1, record 3, French, acuit%C3%A9%20visuelle%20en%20vision%20de%20loin
correct, feminine noun
- acuité visuelle à distance 3, record 3, French, acuit%C3%A9%20visuelle%20%C3%A0%20distance
correct, feminine noun
Record 3, Textual support, French
Record number: 3, Textual support number: 1 OBS
Mesure de l'acuité visuelle. L'acuité visuelle subjective. Sa mesure est la plus fréquente en clinique, en vision de loin comme en vision de près. 1, record 3, French, - acuit%C3%A9%20visuelle%20de%20loin
Record 3, Spanish
Record 3, Textual support, Spanish
Record 4 - internal organization data 2017-05-09
Record 4, English
Record 4, Subject field(s)
- Diagnostic Procedures (Medicine)
- The Eye
Record 4, Main entry term, English
- Snellen fraction
1, record 4, English, Snellen%20fraction
correct
Record 4, Abbreviations, English
Record 4, Synonyms, English
- Snellen notation 2, record 4, English, Snellen%20notation
correct
Record 4, Textual support, English
Record number: 4, Textual support number: 1 CONT
Visual acuity is the measure of the sensitivity of the visual system. It is expressed in Snellen notation, expressed as a fraction, where the numerator indicates the test distance and the denominator denotes the distance at which the letter read by the patient subtends 5 minutes of arc. 2, record 4, English, - Snellen%20fraction
Record 4, French
Record 4, Domaine(s)
- Méthodes diagnostiques (Médecine)
- Oeil
Record 4, Main entry term, French
- fraction de Snellen
1, record 4, French, fraction%20de%20Snellen
correct, feminine noun
Record 4, Abbreviations, French
Record 4, Synonyms, French
Record 4, Textual support, French
Record number: 4, Textual support number: 1 DEF
Représentation de l'acuité visuelle sous la forme d'une fraction [...] dans laquelle le numérateur est la distance, exprimée en mètres (ou en pieds), à laquelle on fait l'examen [...], et le dénominateur la distance à laquelle la plus petite lettre de Snellen reconnue par l'œil est vue sous un angle de 5 minutes. 1, record 4, French, - fraction%20de%20Snellen
Record 4, Spanish
Record 4, Textual support, Spanish
Record 5 - internal organization data 2017-04-26
Record 5, English
Record 5, Subject field(s)
- The Eye
Record 5, Main entry term, English
- distance refractive correction 1, record 5, English, distance%20refractive%20correction
Record 5, Abbreviations, English
Record 5, Synonyms, English
Record 5, Textual support, English
Record number: 5, Textual support number: 1 CONT
... ability to conform to visual acuity requirements such as a) vision(either unaided or corrected by the individual' s usual distance refractive correction) in the eye used to aim a rifle, shall not be worse than 6/9... 1, record 5, English, - distance%20refractive%20correction
Record 5, French
Record 5, Domaine(s)
- Oeil
Record 5, Main entry term, French
- pouvoir de réfraction
1, record 5, French, pouvoir%20de%20r%C3%A9fraction
masculine noun
Record 5, Abbreviations, French
Record 5, Synonyms, French
Record 5, Textual support, French
Record number: 5, Textual support number: 1 CONT
Lorsqu'un œil possède un pouvoir de réfraction normal, l'image des objets situés entre 5 m et l'infini se forme sur la rétine sans intervention de l'accommodation (emmétropie). Dans le cas contraire (amétropie), un verre correcteur est nécessaire pour qu'il en soit ainsi. 1, record 5, French, - pouvoir%20de%20r%C3%A9fraction
Record 5, Spanish
Record 5, Textual support, Spanish
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