Snellen Eye Chart (Alphabet-Type-II)

Snellen Eye Chart (Alphabet-Type-II)

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 causes blurry distance vision. The chart also can help you determine if you
meet the legal visual acuity requirement for a valid driver’s license (20/40 in most states).
DIRECTIONS FOR USE
For the best accuracy (and to prevent memorization), have someone assist you when testing your vision with this eye
chart. If you use eyeglasses or contact lenses for driving or other distance vision tasks, wear them during the test.
1. Place the chart on a wall or easel 10 feet away.
2. Cover one eye with your hand, a large spoon or some other item that completely blocks the vision of the covered
eye. (Do not apply pressure to the covered eye, as it might affect that eye’s vision when you test it.)
3. Identify a line on the chart you can comfortably read. Read the letters on that line aloud. Have your assistant
stand near the chart and record your accuracy.
4. Continue trying to read the letters on each successively smaller line. Do not squint.
5. Have your assistant stop you when you fail to correctly identify at least 50 percent of the letters on a line.
6. Switch to the other eye and repeat.

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