Grayson is blind, the result of a rare genetic disorder that stunts the development of the iris and the crystalline lens covering the eye. He grew up in the limelight of online advocacy ...

Jace, from Connecticut, is one of four children all born with severe childhood blindness who gained 'life-changing improvements' to their vision after an experimental trial of gene therapy.

Ruben Graham-Morris, a blind eight-year-old boy, has mastered echolocation to get around on his own. Ruben was born with Leber's congenital amaurosis, a genetic disease that left him blind from birth.