Scientists have identified molecules that can protect the eye’s cone cells from degeneration, a major cause of vision loss. The discovery points to new drug targets—and even uncovers compounds that may be harmful.

Researchers led by Botond Roska at the Institute of Molecular and Clinical Ophthalmology Basel (IOB), along with an international team, have uncovered genetic pathways and chemical compounds that can help protect cone photoreceptors. These cells are damaged in diseases such as age-related macular degeneration, a leading cause of vision loss.

Why cone cells matter for sight.