Ishihara chart


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 chart" >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.