Xerophthalmia
Computers, televisions and mobile phones produce electromagnetic radiation, which aggravates myopia and astigmatism, causing eye fatigue, eye pain, dry eyes, decreased vision, headache and dizziness.
Some teenagers stay in front of the computer for several hours every day, during which their attention is highly concentrated, and the number of blinks is greatly reduced, which is easy to cause vascular neuromodulation disorder and conjunctival congestion. In addition, playing computer is in an air-conditioned environment. Because the water in the eyeball evaporates too fast, the windows are closed and the air is not circulating, it is easy to cause eye hypoxia, tears are reduced, and the ability to wash foreign bodies in the eye is weakened, which is easy to lead to conjunctivitis and dry eye.
30% of networms have dry eye.
The full name of dry eye is dry eye, which refers to a symptom of tiny scars on the eye surface caused by decreased tears or decreased eye gland function. The survey results show that 3 1.2% people who often use computers suffer from dry eye, and the incidence of dry eye is as high as 44% every time students return to school on holiday.
How can you suffer from dry eye?
Students stay in front of the computer for several hours, and the blink frequency drops to every ten seconds or even more than twenty seconds, while under normal circumstances, they blink every 5-6 seconds. During this period, people's attention is highly concentrated, which is easy to cause disorder of vascular nerve regulation and insufficient secretion of tears, which makes it impossible to keep the eye surface moist, thus resulting in dry eye syndrome. In addition, because the eyes are always staring at the computer, the water in the eyeball evaporates too quickly, which is easy to cause hypoxia in the eye, and the secretion of tears will be reduced, and the ability to wash foreign bodies in the eye will be weakened, which will lead to conjunctivitis and dry eye.
How to prevent dry eye?
Paying attention to eye moisturizing is the best preventive method. Pay attention to the habit of using your eyes and rest regularly. The continuous time in front of the computer screen should not be too long. Rest every 1 hour for 5- 10 minutes, and try to relax your eyes during the interval. Eyes look inward and downward, so when resting, try to look up to the left and up to the right. When people are resting, they should also exercise their neck and shoulder muscles, because the stiffness and disorder of neck muscles will affect their eyesight. Students should also pay attention to the diet structure, supplement more vitamins A, C and D, and eat more carrots, fruits and seafood.
The solution is as follows:
1. The hospital you don't want to go to.
But when the symptoms are serious or persistent, you really need to be diagnosed and treated by an ophthalmologist. If it is diagnosed as dry eye, it should be treated with drugs in strict accordance with the doctor's advice; If it is visual fatigue caused by discomfort of glasses or contact lenses, you can reconfigure appropriate glasses according to the prescription of glasses prescribed by ophthalmologists, and pay attention to eye health care in daily life.
2. Paying attention to eye care in daily life can alleviate the symptoms of dry eye, such as paying attention to mental relaxation at ordinary times and taking a proper rest when feeling tired eyes; Try not to look up, put the TV or computer below eye level, watch TV or use the computer for too long; Desk and computer monitors should be placed in places that are not exposed to direct sunlight, because the images of reflected illumination light will cause eye fatigue; Keep the room at a certain humidity.
solve problems
The most direct way, of course, is to make your eyes moist. The healthiest way is to yawn, and if you can't, you will shed artificial tears.
Eat more vitamin a.
Chrysanthemum is rich in vitamin A, which is an important substance to maintain eye health. Therefore, it is also a good medicine for Chinese medicine to treat various eye diseases. Chrysanthemum tea can make people clear-headed and bright-eyed, especially for dry eye caused by excessive use of eyes. People who often feel dry eyes, especially those who often use computers, might as well drink more chrysanthemum tea.