Échelle De Snellen Pdf Review

The Snellen chart was developed by Hermann Snellen, a Dutch ophthalmologist, in 1862. The chart was designed to be used at a distance of 6 meters (20 feet) to assess visual acuity.

The Snellen chart is used to assess visual acuity by having the patient read the letters on the chart from a distance of 6 meters (20 feet). The patient is asked to cover one eye and read the letters on the chart with the other eye. The process is then repeated with the other eye. The results are recorded as a fraction, with the top number indicating the distance at which the patient can read the chart and the bottom number indicating the distance at which a person with normal vision can read the chart. échelle de snellen pdf

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The Snellen chart, also known as the échelle de Snellen in French, is a standardized visual acuity test used to measure the sharpness and clarity of vision. It consists of a series of rows of letters, with the size of the letters decreasing as you move down the chart. The patient is asked to cover one eye