How To Use Snellen Chart

How To Use Snellen Chart. Some charts included words to read while others simply showed pictures in varying sizes of items such as a flower, wagon, or house. When testing for visual acuity, the patient covers one eye and reads aloud the letters on the chart, beginning at the top and moving toward the bottom.

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If this line is correct (by your measurements) the all the other lines. While the patient covers the right eye first, tell the patient to read the. Some charts included words to read while others simply showed pictures in varying sizes of items such as a flower, wagon, or house.

While the patient covers the right eye first, tell the patient to read the.

This eyesight test chart contains eleven lines of block letters.

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The numerator denotes the distance at which the eye being tested perceives the letter, while the denominator denotes the distance at which a normal eye can perceive the letter. Smaller versions are available for use in smaller indoor spaces. The smallest row of letters that the patient reads accurately determines visual acuity in the uncovered eye.

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