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Visual acuity

Visual acuity (VA) commonly refers to the clarity of vision, but technically rates an animal's ability to recognize small details with precision. Visual acuity depends on optical and neural factors. Optical factors of the eye influence the sharpness of an image on its retina. Neural factors include the health and functioning of the retina, of the neural…

Measurement, Physiology & Definition

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LOINC
28631-0
MedlinePlus
003396
MeSH
D014792

Topics to explore

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Overview

Definition

Measurement

Physiology

Expression

Measurement considerations

"Normal" visual acuity

Other measures

Motion acuity

Advanced semantic analysis

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Map overview Semantic statistics

Visual acuity

Nodes143
Edges142
Triples118
Avg. degree1.99
Density0.013986
Components1

How this topic connects Entity context

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Visual acuity

Top relations

related to External links · 17
Visual acuity → Acuity, FrACT, How Visual Acuity, Human Eye Archived, International Council, May, Measured, Ophthalmology, Prevent BlindnessVisual Acuity Measurement, September, Standard Archived, Test, University, UtahThe Freiburg Visual Acuity, Wayback Machine, Wayback MachineVisual Acuity Chapter, Webvision
related to Further reading · 13
Visual acuity → Carlson, Clinical Procedures, Duane's Clinical Ophthalmology, Golovin SS, ISBN, Kurtz, Lippincott Williams, McGraw Hill, Ocular Examination, Russian, Sivtsev DA, Table, Wilkins
related to Definition · 12
Visual acuity → At, Cyrillic, Golovin, Landolt, Normal, Optotypes, Sivtsev, The, USC, VA, Vision, Visual
measured by · 11
Visual acuity → Care, DIN, EN ISO, European, Ferdinand Monoyer, FrACT, If, In European, Measurement, The, Visual
related to "Normal" visual acuity · 11
Visual acuity → Herman Snellen, In, Normal, On, Snellen's, The, This, Tscherning, Visual, We, When
related to Expression · 9
Visual acuity → Chart, For, In, Landolt, Landolt Cs, Otherwise, Snellen, Using, Visual
related to Other measures · 7
Visual acuity → Because, Humans, Normally, Supporting, This, Under, Vernier
related to Legal definitions · 6
Visual acuity → Australia, For, In, Social Security Act, US, Various
related to Subtended angular velocity detection threshold (SAVT) · 5
Visual acuity → For, It, SAVT, There, This
is a · 3
Visual acuity → measure of how well small details are resolved in the very center of the visual field, simple test in accessing the health of the eyes, subjective test meaning that if the patient is unwilling or unable to cooperate

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Important terminology

acuity visual eye vision retina optical needed distance citation normal size ability brain 20 refractive chart eyes limit light lens

Entity relationships Subject–Predicate–Object triples

SubjectPredicateObjectConfidenceSrc
Visual acuityLOINC28631-01.00infobox
Visual acuityMedlinePlus0033961.00infobox
Visual acuityMeSHD0147921.00infobox
Visual acuityis ameasure of how well small details are resolved in the very center of the visual field0.90text
Visual acuityis asimple test in accessing the health of the eyes0.90text
Visual acuityis asubjective test meaning that if the patient is unwilling or unable to cooperate0.90text
the amacrineinstance ofThis is mediated by neurons0.80text
horizontal cellsinstance ofThis is mediated by neurons0.80text
which functionally render the spread or convergence of signals inactiveinstance ofThis is mediated by neurons0.80text
tumorsinstance ofdiseases affecting the optic pathway to the brain0.80text
multiple sclerosisinstance ofdiseases affecting the optic pathway to the brain0.80text
and diseases affecting the visual cortex such as tumorsinstance ofdiseases affecting the optic pathway to the brain0.80text

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    Min side: 3
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