With the continuous popularization of modern communication tools, computers, cell phones and other tools have become indispensable tools in people’s lives and offices. As a result of prolonged exposure to such tools, visual fatigue appears more frequently. In order to cope with visual fatigue, it is very important to utilize visual fatigue-relieving foods to supplement the eyes and restore vision to a normal state.

Visual fatigue is a common problem encountered in people’s productive life. There are two main reasons for this problem, one is due to prolonged use of the eyes without corresponding protective measures, and the other is due to the lack of nutrition in the eye caused by visual fatigue.

No matter what the cause of eye fatigue, should be treated correctly, because prolonged eye fatigue will cause vision loss, so in the fatigue need to be effectively relieved, and take the eye to help the role of functional food is to relieve eye fatigue effective way. Functional foods can relieve eye fatigue mainly because their ingredients are closely related to the nutritional needs of the eyes.

Overview of Visual Fatigue

Visual fatigue is a common problem that occurs when people use their eyes, and along with visual fatigue, vision loss occurs, which has a very obvious negative effect on people’s normal use of their eyes, and causes vision loss for a variety of reasons, and here we focus on analyzing three points.

The first reason is various types of refractive errors, farsightedness, myopia and astigmatism have a great relationship with the formation of refractive errors. Refractive error occurs when people use their eyes in an unscientific manner in daily life, including poor eye alignment and inadequate or untimely eye care measures.

Next is the clouding of the lens. The lens is a key building block of the eye structure, and clouding of the lens often results in cataracts, a disease that can have a huge impact on vision.

The last type of disease is corneal disease. The cornea is also a key building block of the eye’s structure, and clouding of the cornea can also cause very serious vision loss.

Functional food types and efficacy of composition analysis

1. Vitamin food
Vitamin foods can effectively alleviate visual fatigue, and those that can alleviate visual fatigue are mainly foods rich in vitamin A and vitamin C. Vitamin A is mainly used to promote the development of the eye, but it is also used to reduce visual fatigue.

The main effect of vitamin A is to promote the regeneration of retinal pigment. In practice, the lack of retinal pigment will lead to night blindness, dry eye, and more seriously, corneal softening and corneal ulcers, and the consumption of vitamin A-rich foods can effectively avoid the occurrence of the above eye diseases.

Vitamin C is important for protecting the lens of the eye as its main effect is to minimize the damage caused by light and oxygen. Thanks to vitamin C, cataracts can be relieved.

2. Mineral Foods
Mineral foods also play an important role in relieving visual fatigue. Elements such as calcium, chromium and zinc play an important role in normal eye activity.

Calcium is closely related to bone growth, and when the eyes are developing and growing, the lack or insufficiency of calcium can cause myopia, so it is important to pay attention to calcium supplementation in the process of eye use. Chromium’s main function is to activate insulin, so as to ensure the normal level of insulin supply. Lack of or insufficient supply of chromium can also induce myopia.

Zinc deficiency can directly lead to visual impairment, because zinc is the main component of bone and blood structure, zinc can be involved in the metabolism and transportation of vitamin A in the eye, to maintain the retinal pigment epithelium in the long run, zinc deficiency will induce a series of eye diseases.

3. Lutein food
The efficacy of lutein products is mainly related to lutein, lutein is the main component of the macula in the eye, lutein can prevent the aging of the retinal macula, the retinal yellow fever has a positive role in alleviating.

In clinical trials, lutein has been shown to be effective in preventing blindness due to muscular degenerative disease, and lutein also has a prominent role in filtering ultraviolet light and other rays that can cause great damage to the eye.

In the current era of popularity of computers and cell phones, the active use of lutein products can effectively reduce the radiation factor to bring eye damage, thereby alleviating visual fatigue.

4. Anthocyanin food
The main component of anthocyanin products is anthocyanosides, which is a kind of European lingonberry extract, and this kind of substance has a significant role in relieving eye fatigue.

The primary function of anthocyanosides is to protect capillaries and promote the regeneration of optic red blood cells. The capillaries in the eye structure are very well developed, and damage to the capillaries can directly cause eye trauma, and the protective effect of anthocyanosides on the eye capillaries is very obvious.

Another significant function of anthocyanidins is to improve the eye’s ability to adapt to the darkness, and the improvement of this adaptive ability is also a significant help in relieving visual fatigue.

5. Kelp
The most prominent feature of kelp is the iodine content is particularly high, in modern society, kelp is also a very effective relief of visual fatigue food, the main reason is that kelp is rich in mannitol.

The prominent effect of mannitol has a diuretic effect, can effectively reduce the pressure of the eye, which has a positive effect on the treatment of acute glaucoma.

In addition, wakame, which is similar to kelp, also contains mannitol, so it is generally used in the adjuvant treatment of acute glaucoma.

Reference: Yanqun Hu and Xiaojun Xu, Analysis of functional foods for relieving visual fatigue and their efficacy components