How Blind People Use QR Codes
Invisible Wall or New Door?
The main challenge for blind users isn't scanning QR codes (cameras handle that) but finding them. For low-vision users, QR codes are actually helpful: scanning replaces struggling with small text, displaying information in large font with screen reader support.
Tactile Markers Show QR Code Locations
Textured stickers or raised frames near QR codes let users find them by touch. Japanese municipalities are piloting tactile-marked QR codes on public facility signs that play audio guides when scanned. 'Touch to find, scan to hear' is gradually expanding.
Smartphone Audio Guides for Finding QR Codes
iPhone's VoiceOver announces 'QR code detected' when one enters the camera view. Users slowly sweep their phone until the detection sound plays, then scan. On Android the roles are split: the camera app does the detecting (Google's camera app shows a tappable banner on supported devices) while TalkBack reads out what lands on screen. OS-level accessibility support makes independent scanning possible when the general location is known.
Why NaviLens Chose Its Own Code Instead of QR
Spain's NaviLens uses a colour marker of its own rather than a QR code: the vendor states that it needs no focusing or framing and is picked up on the move from over 30 metres away, even at steep angles. A scan plays the directions registered to that marker - 'elevator 5 metres to your right' - which is wayfinding where GPS can't reach indoors. Users do need a dedicated free app and venues need a licence, so it is not a matter of printing and sticking. The same company also wraps an ordinary QR code inside that marker, so the camera finds the marker from a distance and then reads the unchanged QR up close: a design that treats finding the code, not reading it, as the real obstacle.
The Path to QR Codes for Everyone
Technical solutions (tactile markers, camera detection sounds, indoor audio navigation) are advancing steadily. But the most important factor is awareness among those who deploy QR codes. Pausing to ask 'How would a blind person find this QR code?' is the first step toward universal accessibility.