Description
The Snellen Eye Chart (E-Type) is a vision testing tool designed to measure the clarity of distance vision. It is particularly useful for screening children for nearsightedness, which can cause blurry distance vision. Additionally, it helps individuals verify if they meet the legal visual acuity requirements for a driver’s license, commonly 20/40 in most states.
For accurate results, it is recommended to have an assistant during the test. Users should wear glasses or contact lenses if necessary for distance vision. This chart enables healthcare providers, educators, and individuals to monitor and evaluate visual acuity effectively, ensuring early detection of vision issues.
Directions for Use
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Place the chart on a wall or easel 10 feet away from the subject.
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Cover one eye completely using a hand, large spoon, or another item (do not apply pressure).
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Identify a line that can be read comfortably and read the letters aloud. Have an assistant record your accuracy.
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Continue reading letters on successively smaller lines without squinting.
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Stop when less than 50% of the letters on a line are correctly identified.
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Switch to the other eye and repeat the test.
The Snellen Eye Chart E-Type is a reliable, easy-to-use tool for distance vision screening in schools, clinics, and homes, providing clear and precise results for children and adults alike.
