Visual Acuity

Clarity or sharpness of OCULAR VISION or the ability of the eye to see fine details. Visual acuity depends on the functions of RETINA, neuronal transmission, and the interpretative ability of the brain. Normal visual acuity is expressed as 20/20 indicating that one can see at 20 feet what should normally be seen at that distance. Visual acuity can also be influenced by brightness, color, and contrast.

Year introduced: 1970(1968)

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Tree Number(s): E01.370.380.850.950, F02.463.593.932.901, G14.940

MeSH Unique ID: D014792

Entry Terms:

• Acuities, Visual
• Acuity, Visual
• Visual Acuities

Previous Indexing:

• Vision (1966-1967)

See Also:

• Refraction, Ocular
• Refractive Errors

All MeSH Categories
Analytical, Diagnostic and Therapeutic Techniques and Equipment Category
Diagnosis
Diagnostic Techniques and Procedures
Diagnostic Techniques, Ophthalmological
Vision Tests
Visual Acuity
Contrast Sensitivity
Emmetropia

All MeSH Categories
Psychiatry and Psychology Category
Psychological Phenomena
Mental Processes
Perception
Visual Perception
Visual Acuity
Contrast Sensitivity
Emmetropia

All MeSH Categories
Phenomena and Processes Category
Ocular Physiological Phenomena
Visual Acuity
Contrast Sensitivity
Emmetropia