About This Condition

Flashing content and rapid visual transitions can trigger seizures in people with photosensitive epilepsy. Safe digital experiences require predictable, stable visuals with no strobing or high-frequency animation, even in subtle UI elements.

Digital Challenges

Flashing content, looping animations, and rapid visual transitions can trigger seizures without warning. Unlike most accessibility barriers, the consequence here is not frustration but physical harm. Interfaces that do not default to safe visual behavior put people with photosensitive epilepsy at direct risk.

Assistive Technologies

• Reduced motion OS settings
• browser content blockers
• keyboard navigation

Design Considerations

Default all animations to off or minimal. Respect the prefers-reduced-motion media query as a safe starting state, not an opt-in. Never use flashing content, strobing effects, or rapidly cycling visuals anywhere in the interface.

Clinical Examples

Photosensitive epilepsy, juvenile myoclonic epilepsy, Dravet syndrome