Can Lutein Really Protect against Blue Light and Dry Eye?

Lutein is a carotenoid that is found in many vegetables, fruits and flowers. It is also the most important nutrient in our human retina. It is contained in the macular area of the retina (the center of vision) and the lens. Especially in the macular area, there are high concentrations of lutein.

Moreover, studies have shown that lutein is the only carotenoid found in the retina and lens of the eye. This element cannot be produced by the human body itself and must be supplemented by external intake. If you use your eyes too much and consume too much lutein without replenishing it in time, it can seriously lead to blindness. So many people call it "eye gold and eye protector"!

How does lutein protect eyes?

1. Anti-free radicals and filter blue light.

When outdoor ultraviolet rays and blue light enter our eyes, they will produce a large amount of free radicals, which can easily damage the optic nerve. Lutein can inhibit the formation of free radicals and reduce damage to the eyes. In addition, long-term use of electronic products will inevitably expose the eyes to blue light, and lutein is yellowish-red in color and can effectively absorb and filter blue light, thereby avoiding short-wave blue light damage to the eyes.

2. Promote the regeneration of rhodopsin.

Rhodopsin is an important substance in maintaining eye vision. Lutein can promote the regeneration of rhodopsin in our retinas to achieve the purpose of seeing things more clearly.

3. Protect the macular area.

As mentioned earlier, the macular area in the retina is the center of vision, and the quality of vision is closely related to macular function. Supplementing lutein can increase the lutein concentration in the macular area of the retina, protect the macular area, and prevent macular degeneration from affecting vision.

How to choose lutein products?

1. Lutein esters, it’s function is equivalent to that of lutein, but lutein ester is more stable and tolerant than lutein and is not easily destroyed. It can be directly converted into lutein when taken into the body. It is absorbed, and its bioavailability is 61.6% higher than that of lutein! It is generally recommended that you should not consume more than 10 mg of lutein a day, otherwise it may cause unnecessary burden on the liver, and choose lutein esters that are better absorbed than directly supplementing lutein.

2. Look at other ingredients.

In addition to a sufficient amount of lutein ester, many products also add beta-carotene, which can effectively remove free radicals produced by metabolic damage in our eyes, relieve eye soreness, and protect the eyes from feeling too tired after using them too much. In addition, there are Chinese wolfberry that we are all familiar with. They are rich in zeaxanthin, carotene, vitamin B, etc., which can resist ultraviolet rays and blue light and relieve dry eyes. In addition to lutein esters, there are also ingredients such as blueberry fruit powder, glucose, and xylitol, which can also play a role in eye protection.

The main function of lutein is to protect the eyes, so people who look at mobile phones, computers for a long time, and often stay up late should pay special attention to supplementing lutein. In addition, people with amblyopia, astigmatism, myopia, diabetic retinopathy and other eye diseases should also enhance eye care timely. If you often feel that your eyes are sore and dry, and are worried about overusing your eyes and damaging your vision, you should put lutein supplementation on your agenda. Protecting your eyes from the root cause will not go wrong.