Many brightly colored fruits and vegetables such as carrots and peppers, along with dark green leafy vegetables such as spinach or cabbage, contain carotenoids such as lutein and zeaxanthin that have proven essential for eye health.
Both lutein and zeaxanthin are found in high concentrations in the macula of the eye, exerting a protective effect on it. In fact, many studies have linked increased consumption of lutein with a lower risk of developing age-related macular degeneration, a disease that affects central vision as we age.
A new study has shown that lutein could also be an important supplement for young people who spend a lot of time in front of computer screens. The study involved 37 healthy adults aged 22 and 30, who were exposed to prolonged use of the computer, and were divided into 3 groups that took either placebo or 6mg of lutein or 12mg of lutein on a daily basis. At 12 weeks an increase in plasma lutein was observed in the 2 groups that received the supplement and both groups presented an increase in contrast sensitivity and in the case of the higher dose group (12mg) a trend towards better visual acuity.
Source: Archives of Internal Medicine