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  2. How to Use the Amsler Grid to Test Your Vision - Healthline

    www.healthline.com/health/using-the-amsler-grid

    Here’s how to use the Amsler grid as part of monitoring your wet AMD: 1. Print out the Amsler grid. The Amsler grid looks best on pure white matte paper. You can get your own copy to print off ...

  3. Amsler Grid Test for Retinal Conditions, When to See a Doctor

    www.healthline.com/health/eye-health/amsler-grid...

    Marc Amsler, a professor of ophthalmology in the Eye Clinic at the University of Zurich, developed the grid in the 1950s. Amsler grid. Take the test by looking at the grid and following these ...

  4. Amsler grid - Wikipedia

    en.wikipedia.org/wiki/Amsler_grid

    Central visual field. The Amsler grid, used since 1945, is a grid of horizontal and vertical lines used to monitor a person's central visual field. The grid was developed by Marc Amsler, a Swiss ophthalmologist. It is a diagnostic tool that aids in the detection of visual disturbances caused by changes in the retina, particularly the macula (e ...

  5. What Is the Amsler Grid? - WebMD

    www.webmd.com/eye-health/what-is-amsler-grid

    The basic Amsler grid is a 10-centimeter by 10-centimeter square filled with evenly spaced straight lines in a grid pattern. The lines form very small squares that measure 5 millimeters on each ...

  6. Tests To Diagnose Macular Degeneration in Your Eyes - Healthline

    www.healthline.com/health/eye-health/macular...

    Put on your glasses, if you wear them. Hold the grid 12 to 15 inches from your face. Cover one eye. Look at the dot in the center of grid and observe whether the lines around it appear blurry or ...

  7. 1951 USAF resolution test chart - Wikipedia

    en.wikipedia.org/.../1951_USAF_resolution_test_chart

    A 1951 USAF resolution test chart is a microscopic optical resolution test device originally defined by the U.S. Air Force MIL-STD-150A standard of 1951. The design provides numerous small target shapes exhibiting a stepped assortment of precise spatial frequency specimens. It is widely used in optical engineering laboratory work to analyze and ...

  8. Snellen chart - Wikipedia

    en.wikipedia.org/wiki/Snellen_chart

    Snellen chart is used to estimate visual acuity (last three rows are 20/15, 20/13 and 20/10) A Snellen chart is an eye chart that can be used to measure visual acuity. Snellen charts are named after the Dutch ophthalmologist Herman Snellen who developed the chart in 1862 as a measurement tool for the acuity formula developed by his professor ...

  9. How to Check Astigmatism at Home - WebMD

    www.webmd.com/eye-health/astigmatism-at-home

    To use an eye chart at home, you’ll need to: Print the chart. Place the chart on a wall with no windows on it. Place a chair 10 feet away from the wall. Sit in the chair.

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