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determination of visual acuity by means of Snellen test types.Medical dictionary. 2011.
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
Snellen test — noun a test of visual acuity using a Snellen chart • Hypernyms: ↑test, ↑trial, ↑run … Useful english dictionary
Snellen chart — Snel·len chart snel ən n the chart used in the Snellen test with black letters of various sizes against a white background Snellen Hermann (1834 1908) Dutch ophthalmologist. Snellen was director of an eye clinic at Utrecht. In 1862 he introduced… … Medical dictionary
Test — se puede referir a una prueba o ensayo sobre algún tema de interés; una prueba o examen de conocimientos; un test psicológico, como por ejemplo; un Test de inteligencia; el test de Rorschach; el test de Lüscher o test de los colores; otro tipo de … Wikipedia Español
Snellen chart — A Snellen chart is an eye chart used by eye care professionals and others to measure visual acuity. Snellen charts are named after the Dutch ophthalmologist Herman Snellen who developed the chart in 1862.DescriptionThe traditional Snellen chart… … Wikipedia
Test de Snellen — Gráfica de Snellen. El test de Snellen es una prueba diseñada para evaluar la agudeza visual. Recibe el nombre en honor del oftalmólogo neerlandés Herman Snellen quien diseñó el test en 1862. Las prueba consiste en identificar correctamente las… … Wikipedia Español
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, eye chart — This test measures how well you see at various distances. 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 distance at which that line of letters … Medical dictionary
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
Snellen's chart — The familiar eye chart used to measure how well you see at various distances. Snellen s chart is imprinted with block letters that line by line decrease in size, corresponding to the distance at which that line of letters is normally visible. The … Medical dictionary
