Quantum Chemistry in Eyes Prevents Vision Loss.

Researchers from the University of Tübingen and Yale University have discovered that melanin, the pigment responsible for darkening hair, skin, and eyes, plays a crucial role in protecting the retina from toxic compounds that can cause vision loss. The process involves a quantum-like behavior called chemexcitation, which boosts melanin's electrons to a high energy state, allowing it to degrade dangerous compounds. The knowledge gained from this study could lead to the development of pharmaceuticals that can break down toxic compounds in aging individuals, preventing age-related macular degeneration.