When Creed Petit was just a toddler, his parents noticed that he wasn’t hitting childhood milestones. He was seen by a number of doctors, but it was Dr. Byron Lam, a neuro-ophthalmologist and gene therapy expert at the niversity of Miami’s No. 1-ranked Bascom Palmer Institute, who diagnosed Petit with Leber Congential Amaurosis, a blinding disease caused by a genetic mutation.