Toan, a 10-year-old boy who lives with his grandparents in Da Bac, Vietnam, struggled with blurry vision. It has kept him from reading the board at school, affecting his grades and confidence.
His grandmother recalls, "Sometimes Toan would tilt his head trying to see. He often complained about not being able to see clearly, but I didn’t know why. It made it so hard for him to write down what the teachers said, and his school results began to suffer."