WebHelpDyslexia: A Browser Extension to Adapt Web Content for
People With Dyslexia

What is it?

That causes dyslexia?

What are the effects of dyslexia?

that Web accessibility means that disabled people can use the Web
effectively.

their definition, this means they can perceive, understand, navigate and interact with the
Web

Freire et al

Al-Wabil et al

Rello et al

Santana et al

Requirements for the development of the WebHelpDyslexia extension were gathered mainly from a literature. Requirements were also gathered by means of two iterative development cycles involving preliminary
evaluations with dyslexic users

The extension was developed using HTML (HyperText Markup Language), CSS (Cascading Style Sheets) and JavaScript. The extension adds extra code to original pages. This way, it was very important to pay special attention to
HTML elements and to style sheets in order to preserve the characteristics of the original page and to make sure
users could read them.

WebHelpDyslexia was developed as an extension to Google Chrome

Font type, size, decoration and colour

Paragraph alignment and text spacing

Text highlighting and “reading ruler”

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