Ishihara chart


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chart

 [chart]
a record of data in graphic or tabular form.
Amsler c's a set of charts used for the detection and measurement of visual field defects. The charts consist of various geometric patterns, such as grids or parallel lines, printed in white on a black background, with a dot in the center. The patient looks at the dot with one eye closed; defects in the visual field will cause the patient to see irregularities or blank spots in the pattern.
dental chart a record of a patient's dental history and treatment
Dental chart showing caries and defective restorations. Adequate restorations are not charted. From Barsh, 1981.
(see illustration).
genealogical chart a graph showing various descendants of a common ancestor, used to indicate those affected by genetically determined disease.
Ishihara chart the pseudoisochromatic chart used in the Ishihara test. (See Atlas 4, Part F.)
reading chart a chart with material printed in gradually increasing type sizes, used in testing acuity of near vision.
Reuss' chart a chart similar to the Ishihara chart for testing color vision.
chart rounds review of a hospitalized patient's current records by a group of health care professionals. Chart rounds can be undertaken for a variety of reasons such as assessment of patient progress, planning of interventions, or education of staff.
Snellen's chart a chart printed with block letters in gradually decreasing sizes, used in testing visual acuity.
 The Snellen chart is used to assess distant vision. From Malarkey and McMorrow, 2000.

Ishihara chart

the pseudoisochromatic chart used in the Ishihara test for color vision deficiencies.
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