A vitamin A discovery is changing what scientists know about vision

Researchers have uncovered a significant breakthrough in how central vision develops in humans before birth, challenging existing theories. They discovered that blue cone cells transform into red and green cones, guided by vitamin A-related signals and thyroid hormones, rather than migrating away. This finding could revolutionize lab-grown retinal tissue and pave the way for advanced cell therapies to restore vision lost to age-related eye diseases, marking a major step forward in understanding and treating visual impairments.