Dry eye principle
The corneal surface of our eyeball will be covered with a tear film. The tear film is mainly divided into three layers, which are lipid layer, water layer and mucin layer from outside to inside. The isomorphism of these three layers forms the foundation, which ensures the stability of the tear film on the ocular surface and plays a role in moistening and protecting the ocular surface.
Causes of dry eye formation
1, long-term use of electronic equipment
When we use electronic equipment, our attention is highly concentrated and the number of blinks will decrease. Long-term exposure of the eye surface to air will make tears evaporate too quickly. Long-term use of eyes will also reduce the lipid of the outermost layer of tear film, reduce the protective effect of the outermost layer of tear film and increase the risk of tear evaporation. In addition, the light emitted by the electronic screen is like a sword, which stimulates our ocular surface cells and further reduces the stability of the tear film. Watching the electronic screen for a long time will also make the eye muscles contract, causing visual fatigue.
2. Wear contact lenses for a long time
The appearance of contact lenses saved many people whose beauty was sealed by frames. Wearing contact lenses for an unreasonable long time will reduce the sensitivity of the cornea, make the cornea dull, and naturally reduce the number of blinks. The decrease in the number of blinks will lead to the disorder of lipid secretion of meibomian gland, that is, the lipid can not be supplemented, without the protection of lipid brother, the evaporation rate of tears will accelerate, and the symptoms of dry eye will come out. In addition, poor quality contact lenses will damage the ocular surface structure, so we should not be careless when choosing contact lenses.
3. Bad behavior habits
Unhealthy eating habits, lack of exercise, staying up late and abusing eye drops can all cause dry eye.
A dry environment
In summer, the weather is more than 30 degrees, and the office without air conditioning is a big steamer. However, after the air conditioner is turned on, the indoor air humidity becomes lower, which will accelerate the evaporation of tears and aggravate the symptoms of dry eye.
5. Mental stress and anxiety
Various pressures, such as mortgage, car loan and performance, often lead to various negative emotions of office workers and long-term tension and anxiety. It will lead to abnormal nerve function and uncomfortable eyes.
How to alleviate eye interference
1, reducing the use time of electronic products such as mobile phones and computers.
Concentrate on using your eyes for one hour and let your eyes rest for 5- 10 minutes. You can close your eyes or look out of the window, and pay attention to eye hygiene and eye time. Keep the correct posture when using the computer, and avoid walking or lying down and watching the mobile phone.
2. Develop good living habits.
Ensure adequate sleep and avoid staying up late. Exercise properly and keep a relaxed and happy mood. Eat a light diet, eat less spicy, fried and irritating food, and drink less.
3. blink more.
Blinking more is helpful to the secretion of tears, which can be evenly applied to the surface of cornea and conjunctiva to keep eyes moist.
4. Improve the working environment.
Humidifier, tea leaves or potted plants can be reasonably placed in air-conditioned rooms, which will increase the indoor air humidity and avoid directly facing the air outlet of the air conditioner.
5, insist on doing eye exercises
Finally, I hope that all "workers" should take good care of their eyes. Everyone has a pair of bright big eyes.