A Teen Built $170 AI Glasses for the Blind After His Grandmother Lost Her Sight

A Personal Loss Sparks a Breakthrough Invention

Alexander Du never planned to become an inventor. But then he saw his grandmother struggle after losing her sight. He witnessed the toll of blindness firsthand — she held his arm tightly as they crossed streets, and he became her guide, narrating curbs, sidewalk cracks, and everything she could no longer see. That experience set a 17-year-old from Sewickley, Pennsylvania on a path that would eventually lead him to the White House.

Du has been named a 2026 Presidential AI Challenge National Champion for inventing IRIS, an AI-powered wearable designed to help blind and visually impaired people navigate their surroundings. IRIS — which stands for Intelligent Responsive Imaging System — is a low-cost wearable AI navigation assistant for the blind and visually impaired, and its $170 price tag is a deliberate feature, not an afterthought.

How IRIS Works — and Why the Price Tag Matters

IRIS is formally described as a "low-cost spatiotemporal AI framework for visually impaired navigation in complex urban environments." In plain terms, it's a pair of lightweight glasses packed with enough intelligence to function like a guide dog. The glasses guide the wearer through direction cues delivered as vibrations on their forehead — if the glasses want the user to go right to avoid an obstacle, they vibrate on the right side of the forehead.

A traditional walking stick only detects obstacles on the ground, and other technology, like smart glasses, can be prohibitively expensive. Du's $170 system undercuts the competition dramatically while delivering real-world functionality. Du also plans for the glasses to include a voice assistant feature, where a person can ask for directions to a specific location. He used technology from the University of Pittsburgh's Intelligent Systems Lab to help build IRIS.

Grief, Failure, and a Trip to the White House

Du failed multiple times before finding success — and tragically, his grandmother passed away before he completed his work on IRIS. But he is committed to making the system accessible to millions of others. That commitment carried him through the grind of iteration and setback. As Du put it himself, "In developing IRIS, I learned that when the path doesn't exist you make it yourself — one paper, one cold email, one failed solder joint at a time."

First Lady Melania Trump hosted the Presidential AI Challenge National Awards Ceremony at the White House on June 9, calling the winners "a very impressive group of innovators." Du described the experience as "truly amazing," saying he was still trying to process it, and that getting recognition for months of work had been "really rewarding." Beyond the Presidential AI Challenge, Du has also earned the Barron Prize, one of the most prestigious honors for young American change-makers.

What Comes Next

Du is working with four other collaborators — Rinesh Sunthar, Kavin Dassanaike-Perera, Sophie Li, and Angela Wei — all of whom were North Allegheny students. The team's ambitions extend well beyond their Pittsburgh suburb. Du has noted that the technology could be especially helpful in a city like Pittsburgh, "a hilly city with aging infrastructure," making it easier for residents with significant vision loss to navigate.

But the implications stretch far beyond any single city. Affordable, wearable AI navigation tools could reshape independence for millions of people worldwide who currently have no practical, low-cost alternative to a cane. The Presidential AI Challenge was designed to inspire young people and educators to create AI-based innovative solutions to community challenges — and in Alexander Du, it found exactly that. His story is a reminder that the most meaningful technology often doesn't come from a corporate lab. Sometimes it starts with a teenager holding his grandmother's hand on a street corner, wondering if there's a better way.