# acuity

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Sharpness or acuteness, as of a needle, wit, etc
A measure of human ability to perceive spatial variations in a scene It varies with the spatial frequency, shape, and contrast of the variations, and depends on whether the scene is coloured or monochrome
Clearness as in visual acuity The most common measure of visual acuity is the Snellen Acuity- completely normal acuity being 20/20 or 6/6 (metric version)
The indication of the clarity of someone's vision
The clearness of eyesight; the keenness of the visual powers AKA: Visual Acuity
clearness, or sharpness of vision
The ability to see clearly at near and far distances
sharpness of vision; the visual ability to resolve fine detail (usually measured by a Snellen chart)
The clarity of vision, usually measured on a chart
Acuteness, as of hearing
The ability to see clearly
Sight; the ability of the eye to resolve fine detail This is usually reported in the Snellen notation, with 20/20 being the normal value Twenty feet is the test distance, and the lower number refers to a reference for a person with normal sight
= keenness of perception; sharpness of vision
Clearness or sharpness of vision
Measure of an eye's ability to distinguish object details and shape Usually specified by the smallest identifiable object that can be seen at 20 ft for distance vision and 16 in for near vision
a quick and penetrating intelligence; "he argued with great acuteness"; "I admired the keenness of his mind"
(L acuitas =sharpness)
This is commonly measured with fractional numbers, i e 20/20, 20/30, etc , and is a measure of your ability to focus
(noun) The property of "sharpness" of the edge of letters and images formed by a matrix printing process The scalloping or deviation from straightness of the edge of letters caused by the construction of the letters or images by individual dots The higher the resolution, other factors being equal, the less the scalloping and the higher the acuity
Clearness, as in visual acuity The most common measure of visual acuity is the Snellen acuity chart Normal acuity being 20/20 (6/6 metric version)
The sharpness or keenness of sensory perception, as in sharp vision and keen hearing
The clarity or distinctness with which we view our world It is commonly measured by looking at charts of letters or pictures Good, average acuity is considered 20/20, meaning at 20 feet, a letter that is 20 mm can be seen clearly, though it is possible to have acuities better than this measurement
{i} acuteness, keenness (usually of the senses)
Acuity is sharpness of vision or hearing, or quickness of thought. We work on improving visual acuity. the ability to think, see, or hear clearly (acuité, from , from agu , from acutus; ACUTE)
perception
visual acuity
The ability to see clearly at a distance In Europe and the UK this is usually measure at 6 metres It is usually given as a fraction where the top number is the distance at which the test is performed The second figure is the level of vision It is usual to think of 6/6 as normal In the USA it is known as 20/20 because the distances are measured in feet instead of metres The larger the number on the bottom of the fraction the worse the vision Many people are able to see better than 6/6 and figures of 6/5 or even 6/4 are not uncommon
visual acuity
Another phrase for visual clarity, it refers to how clearly a person can see Visual acuity is often measured with a traditional eye chart back to top
visual acuity
The ability to distinguish details and shapes of objects; also called central vision
visual acuity
the measurement of vision corrected with spectacles or contact lenses
visual acuity
kev pom tseeb tseeb
visual acuity
The ability to detect visual detail
visual acuity
the space visible to an eye in a given position of gaze
visual acuity
Visual acuity refers to the measure of the sharpness of vision
visual acuity
The finest detail that an eye can distinguish using LogMar or Snellen scales
visual acuity
The ability to distinguish details and shapes of objects
visual acuity
Measure of eye's ability to distinguish object details and shape Assessed by smallest identifiable object that can be seen at a specified distance, usually 20 feet for distance vision and 16 inches for near vision See Free Eye Tests
visual acuity
A measure of the ability to distinguish fine details
visual acuity
Clearness and sharpness of vision (p 112)
visual acuity
A measure of the ability to resolve distinct objects or fine details with the eye
visual acuity
The smallest, fine detail you can see Usually measured with a letter chart But, can also be measured using pictures, black and white lines or visual evoked potentials (VEPs)
visual acuity
The ability to distinguish details and shapes of objects at varying distances
visual acuity
the relative ability of the visual system to resolve detail, usually expressed as the reciprocal of the minimum angular separation, in minutes of arc, of two lines just resolvable as separate and that forms in the average human eye an angle of one minute of arc; often measured by a "Snellen test," a test presenting letters of graduated sizes to determine the smallest size that can be read at a standard distance (a 20/20 letter located 20 feet away from an eye subtends an angle of 5 minutes of arc at the eye); "normal" acuity in the human eye is 20/20, although some eyes are capable of 20/15 or even 20/10 acuity
visual acuity
Measured ability to see
visual acuity
the clearness of vision; the ability to distinguish details and shapes
visual acuity
Ability of the eyes to see objects clearly and distinctly, usually measured on the Snellen eye chart (20/20)
visual acuity
Clearness of vision The ability to distinguish details and shapes of objects; also called central vision
visual acuity
a measure of spatial resolution the measure of the abiltiy to visually discriminate
visual acuity
The clarity or clearness of the vision, a measure of how well a person sees The ability to distinguish details and shapes of objects; also called central vision It is measured on the familiar "Snellen's chart" with its decreasing size of letters
visual acuity
A measure of the eyes ability to see
visual acuity
Sharpness of vision, especially as tested with a Snellen chart. Normal visual acuity based on the Snellen chart is 20/20
visual acuity
sharpness of vision; the visual ability to resolve fine detail (usually measured by a Snellen chart)
visual acuity
The sharpness of vision, the ability of the eye to distinguish detail
acuity

a·cu·i·ty

ıkyuıti

## Aussprache

/əˈkyo͞oətē/ /əˈkjuːətiː/

## Etymologie

[ &-'kyü-&-tE, a- ] (noun.) 1543. From Middle French acuité Medieval Latin acuitas, irreg. Latin acuō (“sharpen”).

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