Spinach-powered eye drops spark partial photosynthesis in mouse eyes

Researchers developed LEAF eye drops containing photosynthetic machinery from spinach. In mice with dry eye, the drops triggered light-driven reactions that reduced inflammation, increased tear production, and minimized corneal damage by producing NADPH, an antioxidant. The approach is promising but has only been tested in mice so far; human safety trials are planned and the drops are designed to remain transparent (no green eyes).