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.
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