What is the lutein of “eye gold”?

Abstract: lutein can filter blue light and decompose the damage of strong light and ultraviolet light to human eyes, so as to avoid the damage of blue light to eyes and prevent vision degradation and blindness caused by lutein deficiency. Therefore, lutein is also known as the protector of eyes., What the human eye sees is the fovea of the macula. There is a large amount of lutein in the macula, so it is called “macula”., Lutein, also known as “eye gold”, is the most important nutrient in human retina. Lutein is a kind of important antioxidant, which is a member of carotenoid family, also known as “plant lutein” 。 It co exists with zeaxanthin in nature. Scientific research shows that lutein is the only carotenoid found in the retina and crystalline body of the eye. This element cannot be made by the human body itself and must be supplemented through external intake. If you lack this element, your eyes will be blind. Ultraviolet and blue light in sunlight entering the eyes will produce a large number of free radicals, leading to cataract, macular degeneration and even cancer., Lutein can filter blue light and decompose the damage of strong light and ultraviolet light to human eyes, so as to avoid the damage of blue light to eyes and prevent vision degradation and blindness caused by lutein deficiency. Therefore, lutein is also known as the protector of eyes., Role of lutein: 1. Main pigment components of retina: lutein and zeaxanthin constitute the main components of vegetable pigments such as vegetables, fruits, flowers and so on. They are also the main pigments in the macular region of human retina. Human eyes contain a high amount of lutein, which cannot be produced by the human body and must be supplemented by ingestion of lutein. If you lack this element, your eyes will be blind., 2. Protect eyes from light damage, delay eye aging and prevent lesions: ultraviolet and blue light in sunlight entering the eyes will produce a large number of free radicals, leading to cataract, macular degeneration and even cancer. Ultraviolet rays can generally filter out the cornea and lens, but blue light can penetrate the eyeball directly to the retina and macula. Lutein in the macula can filter out the blue light to avoid the damage of blue light to the eyes. The outer layer of fat in the macular area is particularly vulnerable to oxidative damage by sunlight, so this area is very prone to degradation., 3. Antioxidant, which helps to prevent cardiovascular sclerosis, coronary heart disease and tumor diseases caused by aging., 4. Vision protection: lutein, as an antioxidant and light protection, can promote the regeneration of rhodopsin in retinal cells, prevent severe myopia and retinal detachment, and can be used to improve vision and protect vision against myopia, amblyopia, strabismus, cataract, keratoconjunctival dryness, macular degeneration, retinal degeneration, etc. It is especially suitable for students and drivers.,

human vision depends on the fovea of the macula. There is a large amount of lutein in the macula, so it is called “macula”.

lutein, also known as “eye gold”, is the most important nutrient in human retina. Lutein is a kind of important antioxidant, which is a member of carotenoid family, also known as “plant lutein” 。 It co exists with zeaxanthin in nature. Scientific research shows that lutein is the only carotenoid found in the retina and crystalline body of the eye. This element cannot be made by the human body itself and must be supplemented through external intake. If you lack this element, your eyes will be blind. Ultraviolet and blue light in sunlight entering the eyes will produce a large number of free radicals, leading to cataract, macular degeneration and even cancer.

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lutein can filter blue light and decompose the damage of strong light and ultraviolet rays to human eyes, so as to avoid the damage of blue light to eyes and prevent vision degradation and blindness caused by lutein deficiency. Therefore, lutein is also known as the protector of eyes.

role of lutein

1. Main pigment components of retina: lutein and zeaxanthin constitute the main components of vegetable pigments, fruits, flowers, etc., and are also the main pigments in the macular region of human retina. Human eyes contain a high amount of lutein, which cannot be produced by the human body and must be supplemented by ingestion of lutein. If you lack this element, your eyes will be blind.

2. Protect eyes from light damage, delay eye aging and prevent lesions: ultraviolet and blue light in sunlight entering the eyes will produce a large number of free radicals, leading to cataract, macular degeneration and even cancer. Ultraviolet rays can generally filter out the cornea and lens, but blue light can penetrate the eyeball directly to the retina and macula. Lutein in the macula can filter out the blue light to avoid the damage of blue light to the eyes. The outer layer of fat in the macular region is particularly vulnerable to oxidative damage by sunlight, so this region is very prone to degradation.

3. Antioxidation helps to prevent cardiovascular sclerosis, coronary heart disease and tumor diseases caused by aging.

4. Vision protection: lutein, as an antioxidant and light protection, can promote the regeneration of rhodopsin in retinal cells, prevent severe myopia and retinal detachment, and can be used to improve vision and protect vision for myopia, amblyopia, strabismus, cataract, xerophthalmia, macular degeneration, retinal degeneration, etc. It is especially suitable for students and drivers.

  5、 Relieve the symptoms of visual fatigue: (blurred vision, dry eyes, eye swelling, eye pain, photophobia).

6. Improve the density of macular pigment, protect macular yellow and promote macular development.

7. Prevent macular degeneration and retinitis pigmentosa.

lutein can prevent vision loss.

With the growth of age, people’s vision gradually declines, and some people will show cataracts. It is generally believed that this is caused by physical aging. But the latest research shows that vision loss is also related to vitamin deficiency in the body.

two reasons for vision loss

1 Temporary exposure to ultraviolet radiation. The lens cells of the eye are mainly composed of crystalline proteins. These proteins, like optical fibers, canLet light pass through and reach the retina to form vision. Ultraviolet and any kind of visible light can pass through the transparent lens. When the lens is temporarily exposed to ultraviolet radiation, its lipids, proteins and other components will be damaged. The accumulation of damaged proteins will gradually change from translucence to turbidity, form cataract and damage vision.

  2. Lack of vitamins. In the crystalline body, there are high concentrations of antioxidants, vitamin C and vitamin E, and a little carotene lutein and zeaxanthin. They can effectively block the damage caused by ultraviolet rays and free radicals. According to the expert report of the elderly nutrition research center of the U.S. Department of agriculture, the more damaged proteins in the lens and the less proteases and antioxidants play a maintenance role, the easier the lens will show cataract and macular degeneration. The

diet can prevent the vision loss of

. In 2001, the US Department of agriculture’s elderly nutrition research center conducted a 13~15 year follow-up survey of 478 women aged 53 to 73 years without diabetes and cataract in order to find out the relationship between turbid and nutrient uptake in the lens area. The results show that it is related to vitamin C, vitamin E, riboflavin, folic acid, safranin β Compared with women with the lowest intake of carotene, lutein and zeaxanthin, women with sufficient nutrient intake have a lower probability of cataract; Compared with women who never took vitamin C tablets, women who took vitamin C tablets for more than 10 years had a 64% lower probability of cataract.

lutein, zeaxanthin and safranin play an important role in preventing the occurrence of cataract even if their concentration in the crystalline body is low. It is reported that the contents of lutein and zeaxanthin in spinach, cabbage and broccoli are the highest, and the content of safranin in cooked tomatoes is the highest.

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stop macular degeneration. There is a macula with a diameter of 3mm in the center of gravity of the retina. It is a visual organization that plays a key role in the eyes. The decomposition of photosensitive cells is an element of age-related macular degeneration. Senile macular degeneration is an important cause of vision loss and blindness in the elderly. According to the report of the National Institute of Ophthalmology of the United States, the study has proved that the blue light with high energy in the sun has the strongest damage effect on the retina, while lutein and zeaxanthin in the macula can absorb blue light and eliminate free radicals, so they can maintain the retina.

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in old age, due to temporary light damage, the demand for these two pigments is also gradually increasing. Lutein is about 6 ~ 7 times the demand of zeaxanthin. When the blood circulates to the macula, the two pigments enter the center of gravity from the outer layer of the macula and stay there. It was found that the concentrations of lutein and zeaxanthin in the eyes of patients with macular degeneration were lower than those without macular degeneration. Explain that lutein and zeaxanthin have a protective effect on macula.

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researchers at the University of Manchester in the United States divided people with macular degeneration and those who wanted to be divided into two groups and asked them to take the preparation containing 15% natural lutein daily for 18 weeks. After 12 weeks, the macular pigment concentration of the two groups increased together. One eye already shows macular degeneration, and both eyes respond equally well to lutein supplementation. This makes it possible for the application of lutein and zeaxanthin to never delay or block the development of macular degeneration.

eat more tomatoes and dark green vegetables

at present, the food additive combination Expert Committee of the food and Agriculture Organization of the United Nations and the World Health Organization has determined that the daily intake of lutein and zeaxanthin that a person can bear is 2 mg / kg body weight. Take a person who weighs 70 kg as an example. He should take 140 mg of lutein and zeaxanthin every day. This new standard will be published in the official documents of the food and Agriculture Organization of the United Nations and the World Health Organization.

dark green vegetables and yellow fruits are important food sources for us to absorb lutein and zeaxanthin. Each 100g of cooked kale contains 15.8mg and each 100g of cooked spinach contains 7.1mg. They are the two vegetables with the most lutein. There are also long leaf lettuce, broccoli, corn, green peas, cabbage and egg yolk.

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can help patients in the middle and early stage to maintain their remaining vision, even if nutrient supplementation can not restore their lost vision. Therefore, for people of different ages, eating more tomatoes and dark green vegetables can maintain their eyesight.