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A Snellen chart is an eye chart that can be used to measure visual acuity by reading letters of different sizes. Learn about the history, description, and variation of Snellen charts, and how they are used to express visual acuity as fractions or ratios.
Tablica Snellena – tablica służąca do oceny visus (ostrości wzroku). Tablice Snellena wzięły swoją nazwę od holenderskiego okulisty Hermanna Snellena, który opracował tablice w 1862 roku. Tradycyjna tablica Snellena posiada jedenaście linii, w których znajdują się litery o malejącej wielkości w kierunku od góry do dołu.
This Eye Chart is styled after the classic Snellen eye chart (PDF file) and sized in proportion to its original computer-generated specifications. Directions: Stand 20 feet in front of the Eye Chart displayed on your computer screen. Do not squint as you read each set of letters.
Use this calculator to test your visual acuity using a Snellen chart on a mobile device. Follow the instructions and select the lowest line that you can read correctly.
24 wrz 2024 · Learn how to use printable eye charts to assess your vision at home. Find out the history, structure, and types of Snellen eye charts and when to consult an eye doctor.
12 paź 2021 · Learn what the Snellen eye chart is, how it works and how to download a printable version. The Snellen chart measures visual acuity by how well a person can read letters from different distances.
27 lut 2019 · Learn about different types of eye charts, such as Snellen, tumbling E and Jaeger, and how to use them to test your vision at home. Find out what 20/20 vision means and what eye charts can and cannot measure.
