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Designing for People with Reading Disabilities
Designing for reading disabilities requires a departure from academic writing styles and the implementation of specific typographic constraints to lower cognitive load.
What: Grace Snow of TetraLogical outlines accessibility best practices, including left-aligned text, short line lengths (70–80 characters), and the use of 'open' fonts with tall x-heights to support users with dyslexia or other reading differences.
Why it matters: Accessibility is increasingly recognized not as a niche requirement, but as a fundamental UX improvement that benefits all users, including non-native speakers and those under time pressure.
Takeaway: Audit your site's readability using the Hemingway app to target a 9th–11th grade reading level and expand all acronyms upon their first use.
Deep dive
- Plain language: Prioritizing direct, simple vocabulary over complex academic phrasing.
- Visual formatting: Using left-aligned text rather than justification to prevent uneven word spacing.
- Typographic criteria: Selecting fonts with distinct character shapes (like '1' vs 'l') and tall x-heights.
- Cognitive cues: Using consistent iconography and descriptive link text (e.g., 'download report' instead of 'click here') to aid navigation.
- Structured hierarchy: Using descriptive, sentence-case headings to allow users to scan page sections efficiently.
Decoder
- Hyperlexia: A condition characterized by a child's precocious ability to read words significantly earlier than the typical age, often without corresponding comprehension.
- Justified text: A paragraph style where text is aligned along both left and right margins, which can create irregular 'rivers' of white space that hinder readability for some users.
Original article
Reading disabilities like dyslexia, hyperlexia, and alexia affect how the brain processes written text — not intelligence — making design choices crucial for reducing cognitive load. Plain language, left-aligned short lines, distinct typography, and descriptive link text are among the key recommendations for digital content that works for more people. These principles benefit not just those with reading disabilities, but also second-language readers, people in a hurry, and those with lower digital literacy.
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