test type

test type
(test tīp) printed letters of varying size, used in the testing of visual acuity; see also under chart.

Medical dictionary. 2011.

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Look at other dictionaries:

  • test type — see test type …   Medical dictionary

  • test type — noun : any of the printed letters or characters on an eye chart a typeface carefully chosen for use as test type …   Useful english dictionary

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  • Snellen's test type — The letters on the familiar eye chart used to measure how well you see at various distances. The eye chart, known as Snellen s chart, is imprinted with block letters that line by line decrease in size, corresponding to the distance at which that… …   Medical dictionary

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  • Snellen test type — block letters used in testing visual acuity, so designed that the whole letter subtends, at the appropriate distance, a visual angle usually of 5 minutes, and each component part subtends an angle of 1 minute. See also Snellen chart, under chart …   Medical dictionary

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  • Test, visual acuity — This test measures how well you see at various distances. It is the familiar eye chart test. The eye chart itself the usual one is called Snellen s chart is imprinted with block letters that line by line decrease in size, corresponding to the… …   Medical dictionary

  • test letter — See test types. * * * test let·ter (test letґər) see test type …   Medical dictionary

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