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RETGUARD

Accessibility Statement

Last updated:

Our Commitment

RetGuard is committed to ensuring digital accessibility for people of all abilities. We continually improve the user experience for everyone and apply the relevant accessibility standards to ensure we provide equal access to all users.

This website targets conformance with the Web Content Accessibility Guidelines (WCAG) 2.1 Level AA. These guidelines explain how to make web content more accessible to people with a wide array of disabilities, including visual, auditory, physical, speech, cognitive, language, learning, and neurological disabilities.

Measures Taken

RetGuard takes the following measures to ensure the accessibility of this website:

  • Semantic HTML: All pages use proper semantic markup including headings, landmarks, lists, and tables with appropriate structure.
  • Keyboard navigation: All interactive elements are fully operable using a keyboard alone, including navigation menus, forms, accordions, and modal dialogs.
  • Focus management: Visible focus indicators are provided for all interactive elements. Focus is trapped within modal dialogs and mobile navigation when open, and returned to the triggering element on close.
  • Skip navigation: A skip-to-content link is provided as the first focusable element on every page, allowing keyboard users to bypass repetitive navigation.
  • Color contrast: Text and interactive elements meet WCAG 2.1 Level AA minimum contrast ratios (4.5:1 for normal text, 3:1 for large text).
  • ARIA attributes: Forms include appropriate aria-required, aria-invalid, and aria-describedby attributes. Tables include captions and column scope. Accordions and modals use proper ARIA roles and states.
  • Alternative text: All meaningful images include descriptive alternative text. Decorative images are marked as presentational.
  • Reduced motion: Animations are disabled when the user has indicated a preference for reduced motion via their operating system settings.
  • Responsive design: All content is accessible and functional across screen sizes, from mobile devices to large desktop monitors, and supports up to 200% browser zoom without loss of content or functionality.

Known Limitations

While we strive for comprehensive accessibility, we are aware of the following limitations:

  • PDF clinical reports: Screening reports generated by the RetGuard system are delivered as PDF documents. While we structure these reports for readability, some assistive technologies may have difficulty interpreting certain visual elements within these PDFs.
  • Grad-CAM heatmap images: Visual evidence heatmaps displayed on the clinical validation and technology pages convey information primarily through color gradients. While alternative text is provided, the full diagnostic detail of these images may not be fully conveyed to users relying on screen readers.

Feedback

We welcome your feedback on the accessibility of the RetGuard website. If you encounter accessibility barriers or have suggestions for improvement, please contact us:

We aim to respond to accessibility feedback within two business days and to resolve reported issues as promptly as possible.

Technical Specifications

This website is built with Next.js and relies on the following technologies for accessibility:

  • HTML5 semantic elements
  • WAI-ARIA 1.2 roles, states, and properties
  • CSS media queries for reduced motion and forced colors
  • JavaScript for keyboard interaction and focus management

The website is tested for accessibility with the following tools and methods:

  • Google Lighthouse accessibility audit
  • Manual keyboard navigation testing
  • Browser zoom testing at 200%
  • Forced high-contrast mode testing