Amblyopia is the leading cause of preventable child-blindness, affecting over 100 million children. With his brother, Vrishab built Kanna, a tool to detect amblyopia early in children and safeguard their vision. Vrishab Krishna is a 16-year-old who loves computer science and math. As a child, he suffered from an eye condition called amblyopia. Amblyopia affects more than 100 million children and is the most common cause of preventable child-blindness around the world.

Vrishab and his brother Viswesh created a system called Kanna to help detect amblyopia early in children using just photographs from a smartphone. Kanna has been presented at research fairs and was awarded a Grand Award at the Intel International Science and Engineering Fair 2019.

In his free time, Vrishab loves learning Carnatic music, playing table tennis and reading books by Isaac Asimov and JRR Tolkien. He is extremely passionate about using his understanding of computer science and math to build scalable technology solutions to tackle global healthcare problems. This talk was given at a TEDx event using the TED conference format but independently organized by a local community. Learn more at

Screening For Eye Disorders Using Smartphones | Vrishab Krishna | TEDxGateway