Peas contain the carotenoids lutein and zeaxanthin. These nutrients help protect your eyes from chronic diseases, such as cataracts and age-related macular degeneration. Lutein and zeaxanthin act as filters from harmful blue light, which contributes to cataracts and macular degeneration. Reference: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3705341/