• measure Snellen Chart

    Study:NTR
    Mode of collection:MeasurementsAndTests   Biological sample/measurement
    Available measurements:
    Young Netherlands Twin Register  YC_ADHMRI
    0
    30 years
    A Snellen chart is an eye chart that can be used to measure visual acuity. The Snellen chart is printed with eleven lines of block letters. The first line consists of one very large letter, which may be one of several letters, for example E, H, or N. Subsequent rows have increasing numbers of letters that decrease in size. A person taking the test covers...
    Created March 28, 2023 • Updated April 4, 2023
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