Today, increased use of digital screens including television, computer and phone screens is seen amongst all age groups. This has further increased during the COVID-19 pandemic related lockdowns and greater efforts to study and work from home.
Dr. Hasanain Shikari, Ophthalmologist and Vitreo-retina and Laser Specialist reminds that spending long hours with digital screens exposes you to excessive blue light. This is believed to cause phototoxic damage to the eyes.
Lutein and Zeaxanthin are powerful antioxidants, that work together to protect your eyes. They accumulate in the macula region of the retina at the back of your eye. Infact, lutein gives the macula its yellow hue and together Lutein and Zeaxanthin are known as “macular pigments”. They work as a natural sunblock by absorbing excess light energy. They’re thought to especially protect your eyes from harmful blue light, by acting as a blue light filter.
The human body does not naturally make the lutein and zeaxanthin it needs. Lutein and zeaxanthin are carotenoids and their only source is food.
Getting daily amounts of lutein and zeaxanthin through your diet or nutritional supplements can help maintain good eye health and thus protect you from age-related macular degeneration (ARMD, AMD), cataracts and diabetic retinopathy.
Lutein and Zeaxanthin are common in dark green leafy vegetables and foods with yellow and orange pigments. Green leafy vegetables include kale, spinach, broccoli, asparagus, green peas, romaine lettuce, basil and parsley.
The highest concentrations of lutein are found in kale and cooked spinach while orange bell peppers, maize (corn) and chicken egg yolks are rich in Zeaxanthin.
Pistachios, corn-based breakfast cereals and Freekeh, an ancient grain are also sources.