Increased levels of lutein and zeaxanthin may reduce the risk of cataract by about 40%, suggests new research.
The highest average levels of lutein and zeaxanthin were associated with a 42 and 41% reduction in the risk of cataract, respectively, compared with the lowest average levels.
The study adds to an ever-growing body of science supporting the role of lutein and zeaxanthin for eye health, with the majority supporting their role agains age-related macular degeneration, the leading cause of legal blindness for people over 55 years of age in the Western world.
Researchers base their conclusions of data from 1689 elderly people aged between 61 and 80 participating in the study.
The data revealed 113 cases of incidente age-related cataracts, of which 108 were nuclear cataracts, said the researchers.
The highest versus lowest average levels of lutein and zeaxanthin were associated with significant reductions in the risk of cataract, wrote the researchers.
The researchers note that both compounds appeared to provide similar levels of protection from cataracts.