Vision Checker

A reliable check starts with the setup

How to use Vision Checker

Give yourself a few quiet minutes. Consistency matters more than speed.

  1. 1

    Calibrate the display

    Use a physical ruler to make the on-screen bar exactly 50 mm. Leave browser zoom unchanged.

  2. 2

    Measure 1 meter

    Measure from your eyes to the screen. Keep the display upright in even, comfortable lighting.

  3. 3

    Cover one eye

    Cover it gently without pressing. Keep your head still and wear the glasses condition you selected.

  4. 4

    Follow the E

    Choose the direction its bars point. Guess when unsure, and repeat the same setup to compare results.

Go to the vision check