Reading Aid for Dyslexia
Some readers with dyslexia find bionic formatting helps anchor their eye to each word's starting letters.
649 characters · 105 words
Higher = more letters bolded per word
Bionic preview
This is not the same as speed reading. The technique was developed by Swiss typographic designer Renato Casutt in 2016 and has been popularized by various reading apps. Studies on its effectiveness are mixed — some people find it helpful, others see no benefit. Try it for yourself with any text below.
💡 Bionic reading guides your eyes through text by bolding the first part of each word — the brain fills in the rest from the bolded letters. Effectiveness varies: some readers find it speeds them up, others see no difference. Try different fixation amounts to find what works for you.
Dyslexia tips
Effectiveness for dyslexia varies — some readers find it transformative, others find no benefit. Worth trying.
Pair with high-quality dyslexia fonts (OpenDyslexic, Comic Sans, Atkinson Hyperlegible) for compounding benefit.
Increase font size to 20-24px for comfortable reading. Combined with bionic, this can dramatically reduce reading effort.
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