Light‑Activated Eye Drops Restore Vision in Blind Mice

Scientists have developed light‑activated drugs that enabled blind mice to detect light and exhibit visually guided behavior without gene therapy, implants, or specialized lighting. Two of the most promising compounds were effective when delivered as eye drops, eliminating the need for invasive procedures. In laboratory tests, treated mice showed measurable responses to light stimuli and improved navigation in maze tasks. The compounds activate only in the presence of light, reducing potential side effects. Researchers emphasize that the eye‑drop formulation could simplify delivery and reduce costs compared to current vision‑restoration technologies. The study demonstrates a non‑invasive, pharmacological route to restore visual function in animal models.