'Driving Blind' — Tod Purvis, right, and his brother Justin took a road trip across the United States after being diagnosed with choroideremia. The following photos were taken while filming their documentary, "Driving Blind." Courtesy Driving Blind 'Driving Blind' — Courtesy Driving Blind 'Driving Blind' — Courtesy Driving Blind 'Driving Blind' — Courtesy Driving Blind 'Driving Blind' — Courtesy Driving Blind 'Driving Blind' — Courtesy Driving Blind 'Driving Blind' — Courtesy Driving Blind 'Driving Blind' — Courtesy Driving Blind 'Driving Blind' — Courtesy Driving Blind Prev Next
