Gavin Robert Stevens is a 4-year-old boy who suffers from Leber's Congenital Amaurosis (LCA) — a rare hereditary retina disease that has left him completely blind.

Recently, after months of training with his parents on using his white cane independently, Gavin was finally ready to try navigating down a curb on his own.

"I wanted to help him too," says his mother, Jennifer, "but he just wanted to do it by himself. He's a stubborn one."

Gavin's tenacity in the face of adversity has inspired many to join "Gavin's Groupies" in an effort to help raise awareness of his condition, and hopefully, one day, find a cure.

You can learn more about Gavin and LCA by visiting the Gavin R. Stevens Foundation homepage.

[H/T: HyperVocal]