Study offers new insight into the earliest steps of cataract formation

Chemists shed light on how age-related cataracts may begin

Cataracts are a leading cause of blindness worldwide and are considered a priority disease by the World Health Organization. In a new study, researchers at the University of California, Irvine uncovered how a subtle chemical change in an eye lens protein can make the protein more likely to clump together over time, suggesting an early step in cataract formation.

Study offers new insight into the earliest steps of cataract formation

Cataracts are a leading cause of blindness worldwide and are considered a priority disease by the World Health Organization.

UC Irvine Chemists Uncover Early Molecular Changes Behind Age-Related

Irvine, Calif., March 4, 2026 — Cataracts represent a formidable challenge in global health, ranking among the leading causes of blindness worldwide. This common age-related condition leads to the progressive clouding of the eye’s natural lens, impairing vision and quality of life. Despite its prevalence, the microscopic origins of cataract formation remain nuanced and elusive. […]

Researchers Identify Early Molecular Trigger in Age-Related Cataracts

Key Takeaways Researchers at UC Irvine found that a small oxidative chemical change in a crystallin protein can make it more likely to stick to neighboring proteins, a process that may gradually cloud the eye lens Understanding how age-related damage alters protein behavior could help scientists develop future treatments to slow or prevent cataracts before surgery becomes necessary Cataracts may begin forming long before vision becomes clo…