About the project
Through Their Eyes helps designers, developers and site owners understand how accessibility barriers affect people—and how to remove them.
How the simulations work
Color vision simulations use the model by Machado, Oliveira & Fernandes (2009) at full severity, applied to each pixel in linear RGB. Grayscale uses Rec. 709 luminance. Reduced clarity and reduced contrast are illustrative filters, not clinical reproductions.
Your privacy
Screenshots are processed entirely in your browser. Nothing is uploaded or stored.
Limitations
These simulations and interactive demonstrations illustrate selected accessibility barriers. They cannot reproduce every individual's experience of disability and are not substitutes for accessibility testing with disabled users or a comprehensive accessibility audit.