Cones Transform Before Birth | Science News

Science News Today | 2 Min News | The Daily News Now! · Jul 9, 2026 · 1m

Scientists have cracked a major mystery in how sharp central vision develops — it’s not about cells moving, but transforming. Using lab-grown retinal organoids, researchers at Johns Hopkins discovered that blue cone cells switch into red and green cones, guided by vitamin A and thyroid hormones, forming the foveola — the eye’s sharpest vision zone. This breakthrough could revolutionize treatments for macular degeneration and glaucoma, paving the way for future cell replacement therapies. Listen in comfort:Get a discount on a Soli Pillow: http://solipillow.com/discount/dnn. Advertise on…