Foods rich in vitamins C and E, zinc, lutein, zeaxanthin, and Omega-3 fatty acids are ideal for maintaining visual health. These nutrients are associated with a lower risk of age-related macular degeneration, cataracts, and dry eye.

Regarding antioxidants, they confirm the hypothesis that increasing the consumption of vitamins C and E contributes to preventing or delaying some types of cataracts and macular degeneration, ingesting 500 mg of vitamin C a day helps to reduce the loss of visual acuity and 25% the progression of age-related macular degeneration, according to the American Optometric Association, while lutein and zeaxanthin, which together act as "internal sunglasses" since their intake increases sensitivity to contrast, improves visual function, reduces photophobia and glare, protects the macula, enabling the production of macular pigment, which moderates the sun's harmful rays. They also act as antioxidants, delaying any macular damage that occurs. A dose of zinc, an antioxidant mineral that helps care for the eyes, thanks to the fact that it becomes an essential nutrient for the good and proper functioning of the retina.

On the other hand, our body cannot create essential fatty acids such as Omega-3, so consuming it provides multiple benefits for visual health. Omega-3 fatty acids, specifically DHA, play an important role in the nerve cell layer of the retina, Omega-3 helps protect adults from both age-related macular degeneration and syndrome dry eye, thanks to the fact that omega-3 helps to modulate the inflammation that leads to dry eye and improves the production of mucin.