Parents of boy with rare eye condition hail ‘amazing’ results of gene therapy

Brendan, 36, with his son Jace, who was diagnosed with a very rare genetic condition and has undergone innovate surgery in London to help his vision (Family handout/PA) -

A couple whose son was among one of the first patients in the world to receive an innovative treatment for a rare genetic condition that causes blindness has said he can now pick small things up off the floor and identify toys from a distance.

Jace, from Connecticut, USA, was diagnosed with leber congenital amaurosis type 4 (LCA4) – a rare inherited eye disease that causes blindness – when he was just a baby.