This screening uses Pelli-Robson style letter triplets. Contrast decreases with each triplet. Identify the letters you see. This is for personal monitoring only and not a clinical diagnosis. See an optometrist for proper testing.
Before you start: Set your screen brightness to maximum for consistent results.
Screen readers: This test is visual. Each triplet shows letters with decreasing contrast. Type the letters you see using the keypad. We provide your score after you submit.
Disclaimer: This tool is for personal monitoring only. It does not replace a professional eye examination and is not a clinical diagnosis. Consult an optometrist or ophthalmologist for accurate contrast sensitivity assessment.
Triplet 1 of 16
Type the three letters you see (left to right):