What Are the Most Common Causes of Fatigue and Nausea?

Vision fatigue refers to eye fatigue caused by excessive use of eyes when engaged in close work or study. This symptom often occurs in close-range precision work, computer work, or studying or working in an environment with poor lighting conditions (excessively bright / dark light), and suffering from refractive errors such as myopia, hyperopia, and old light, as well as the body Weak people.

Visual fatigue

The word asthenopia is derived from the Greek expression and the original meaning is "weak eye". Generally refers to the syndrome produced when using the eye.

Vision fatigue is a common disease in ophthalmology. Patients have a variety of symptoms. The most common is that close work can not last long, and there is pain in the eyes and around the orbit.

Symptoms of visual fatigue are

Common measures for visual fatigue

Long-term close reading, writing, lettering, and computer operation can cause eye fatigue, dryness, blurred vision, and heavy eyelids. According to the various causes of visual fatigue analyzed in the previous section, the following points should be noted in the prevention and treatment of visual fatigue:

First, the common causes of visual fatigue should be eliminated first:

(1) Lighting: keep the light bright and soft, avoid glare and reflection. If you are not sure whether the light is suitable, you can use an eye protection light pen to monitor.

(2) Visual target: When focusing on the eye, the target should not be too small, and the contrast between the target and the surrounding environment should not be too large.

(3) Surrounding environment: Reasonable ventilation to ensure that the surrounding air is fresh.

Second, you can use eye drops to relieve eye fatigue. At the same time, strengthening physical exercise and maintaining good physical and mental health also help prevent vision fatigue.

Third, if after taking measures, there are still symptoms of vision fatigue, then you should go to the hospital for examination to exclude eye fatigue caused by eye disease and other diseases; if it is caused by pathological or refractive factors, it should be treated or corrected in a timely manner.

Visual fatigue office worker

With the popularity of computer applications, many office workers also suffer from visual fatigue. Here are some ways to prevent vision fatigue in office workers:

First, use your computer properly

1. Change the screen quality to avoid flicker. Too low or too high brightness will cause visual fatigue. It is necessary to adjust and replace the screen in time to obtain good picture quality and sharpness. When the screen brightness is 20d / m2 and the contrast ratio is 8: 1 12: 1, appropriate visual effects can be obtained. .

2. Improve sitting posture. It is recommended that the seat adopt a pentagonal seat with good stability, adjustable height and backrest. The forearm is naturally bent at 90 degrees and placed flat on the keyboard. The operator is 50 to 60 cm from the screen and the angle of sight is 30 degrees downward.

3. Improve lighting conditions. The lighting requirements in front of the computer monitor are to ensure that the keyboard and the screen can be seen at the same time, and to avoid reflections and flickers on the screen. Do not generate glare in the lighting (to avoid bright spots of light sources in front of the operator's eyes). Strong, the brightness contrast between the center of the field of view and the environment should not exceed 1:10, and the operator is best not to face the window directly. The vast majority of studies have pointed out that the light level of the display work area is 200-500lux (lux). If you're not sure if the light is right, you can monitor with an eye protection light pen.

4. Improve the surrounding environment. The room is well ventilated to ensure adequate fresh air. The temperature is suitable and an environment with a certain humidity is beneficial to reduce the dryness of the eyes. It is necessary to avoid the air of the air conditioner from directly blowing on the eyes. If necessary, place a humidifier. No smoking indoors. Do not use mosquito coils or spray insecticides.

Second, use eye drops properly

1. When using eye drops to treat vision fatigue, we must first prescribe the right medicine and choose eye drops that can treat vision fatigue.

2. Use eye drops to treat vision fatigue. The biggest function is to keep the eyeballs moist through the components of the eye drops, thereby alleviating some symptoms such as dry eyes. Therefore, it is best to choose eye drops containing sodium hyaluronate, the natural tear component of the human body, so that the side effects are smaller.

3. 1-2 drops of eye drops are sufficient each time, because the capacity of the eyeball determines that only 1-2 drops of eye drops can be received. Some people think that more drops are good, but it is actually waste.

4. It is advisable to drip 3-5 times a day. Some people think that the effect of several drops is good. In fact, this is a misunderstanding. Eye drops are drugs after all. Therefore, when choosing eye drops, try to choose eye drops with good sustained-release properties, such as eye drops of colloidal preparations, because the same number of uses can maintain longer moisturization.

Third, massage

1. Press the eyeball method. With your eyes closed, gently press the eyeball with the index finger, middle finger, or ring finger, or you can rotate and rub. Can't last for too long or rub it hard, stop in about 20 seconds.

2. Press the forehead method. Each of the three fingers of both hands rotates and rubs from the center of the forehead to the left and right temples, and then presses hard on the temples, which can be applied with the fingertips. So the bottom of the eye will feel comfortable. Repeat 3 to 5 times.

3. Press between the eyebrows. Stick the abdomen of the thumb to the recess under the root of the eyebrows, and press or turn gently. Repeat 3 times. Eyes look far away, and the eyeballs are turned to the right, up, left, and down, and the head must not be shaken.

Fourth, other attention

Always ensure adequate sleep, work and rest, balanced diet, eat more cereals, beans, fruits, vegetables and animal livers, and have a regular life. Eye diseases and other systemic diseases should be promptly diagnosed and treated; pay attention to the regulation and protection of the eyes.

Blink at least 300 times per hour. Normal people between the ages of 20 and 40 blink about 20 times per minute, and when they open their eyes and stare at a fast-moving computer screen, the number of blinks will be reduced to 4 to 5 times per minute, causing severe lack of tear secretion and eyes Dry and sour symptoms. So deliberately blinking is very effective for eye protection. Generally speaking, it s more appropriate to blink 300 times a day, which not only helps to promote tear secretion and alleviate the symptoms of dryness and astringency, but also cleans the eyes and gives a small massage to the eyes to relieve eye fatigue.

In addition, often fumigating your eyes with hot water, hot towels or steam can promote blood circulation in the eyes and alleviate eye fatigue.

Vision fatigue remedies

1. 10 grams of medlar, 10 grams of mulberry, 10 grams of yam, and 10 red dates. Method: Fry the above four drugs twice (split, two juice). How to eat: Take 3-4 hours between head and second juice. Description: Lycium barbarum and mulberry seeds can nourish liver and kidney, yam and red dates to strengthen the spleen and stomach. If people with visual fatigue can take it for a long time, they can not only eliminate the symptoms of visual fatigue, but also strengthen their physique.

2. 1 spoon of black soybean flour, 1 spoon of walnut kernel puree, 1 milk mark, 1 spoon of honey. Method: 500 grams of black beans, fry until cold, grind into powder. 500 grams of walnut kernels, stir-fry, remove the clothes, and mash them until they are cold. Take 1 spoon of each of the above two foods, pour 1 cup of boiled milk and add 1 spoon of honey. How to eat: Take it in the morning or after breakfast. Or for breakfast, and early. Description: Black beans are rich in protein and vitamin B1, etc., have high nutritional value, and because black food enters the kidney, with walnut kernel, it can increase kidney strength, plus milk and honey, these foods contain more vitamin B1, calcium, phosphorus Etc., can strengthen the intraocular muscle strength, strengthen the regulating function, and improve the symptoms of visual fatigue.

3. A cup of chrysanthemum tea chrysanthemum has the effect of nourishing the liver and clearing eyesight. When you feel tired, you can make a cup of steaming chrysanthemum tea and smoke on the mouth with steam of chrysanthemum tea. It can be eliminated in about two or three minutes Eye fatigue. Not only that, the fragrance of chrysanthemums can also relieve dizziness and headaches to a certain extent, so that you can keep a sober mind at any time and clear your eyes.

Visual fatigue (3 photos)