Home use of this Snellen eye chart will help you determine the clarity of your distance vision. This can be useful to screen children for nearsightedness, which .
An eye chart is a chart used to measure visual acuity. Eye charts are often used by health care With the Snellen chart, the visual acuity is recorded as a fraction with 20 in the numerator (top number) and values ranging from 10 to 600 It can be difficult to measure visual acuity in infants, young children, and illiterate adults.
Snellen Test www.provisu.ch. In order to perform this test, please follow the instructions: can cover the eye with a sheet of paper. 4. Read the letters from the.