esearchers report they have used retinal cone photoreceptors derived from human stem cells to restore vision in mice with advanced retinal degeneration. They are now designing a clinical trial to test whether transplanting healthy cone photoreceptors into people with age-related macular degeneration will improve their vision. Other studies have derived from stem cells into patients with macular degeneration, but this latest work in mice transplanted cone photoreceptors rather than retinal pigment epithelium.   “The reason we focus on cones is because they’re the most...…esearchers report they have used retinal cone photoreceptors derived from human stem cells to restore vision in mice with advanced retinal degeneration. They are now designing a clinical trial to test whether transplanting healthy cone photoreceptors into people with age-related macular degeneration will improve their vision. Other studies have derived from stem cells into patients with macular degeneration, but this latest work in mice transplanted cone photoreceptors rather than retinal pigment epithelium.   “The reason we focus on cones is because they’re the most...WW…