What is cone dystrophy?

● Cone dystrophies are a group of genetic disorders that affect the ability of lightsensing cells in the eye to capture images in the visual field. People with stationary dystrophy have the same level of sight loss from birth or early childhood. Progressive dystrophy, as in Tony Giles’s case, develops later, and sight is lost gradually over time.

● Photophobia often accompanies cone dystrophy, and causes sensitivity to sunlight and fluorescent light, meaning the sufferer must often wear dark glasses to ease the discomfort.

● Visit macularsociety.org for details.