Don't underestimate the action of blinking. Experts have said that blinking too often or not blinking for a long time means that there is something wrong with the tear film of your eyes! Come and test whether there is something wrong with your eyes!
Quick test: How many seconds can you keep without blinking?
Now you can do a blink time test to see how long you can hold on without blinking.
If you can blink for more than 10 seconds, it means that your eyes are normal; But if you feel dry eyes and blink frequently for less than 10 second, you are likely to suffer from dry eye. In addition, not blinking for a long time is also problematic, which may indicate that your corneal nerve perception ability is weak, which may easily lead to evaporation of tear film on the ocular surface, corneal dryness and keratitis. Experts say that the "blink time" mentioned here is also called "tear film rupture time" The purpose of blinking is to continuously form a tear film on the surface of the eyeball to protect the eyes. A good tear film can moderately protect the cornea from external factors, such as exogenous splash and eye infection, and can be washed by tears on the surface of the tear film to protect the cornea to a certain extent.
2 A complete list of dry eye symptoms, have you been recruited?
In fact, dry eye is a disease that is often overlooked. Experts say that if your blink interval is less than 10 second and the following symptoms appear, you must be vigilant. You may have dry eye.
Symptoms and manifestations of dry eye
(1) afraid of light and strong light;
(2) eye friction;
(3) dry eyes;
(4) Seeing things clearly for a while and unclear for a while;
(5) blurred vision cannot be alleviated.
Can dry eye cause blindness? It's true!
Experts tell us that, generally speaking, if your eyes occasionally appear dry symptoms, it is mild dry eye; If the eyes are uncomfortable for half a day, it can be judged as moderate dry eye; However, if the eyes have foreign body sensation for more than half a day, accompanied by itching and other symptoms, it is severe dry eye.
For mild to moderate dry eye, experts say it is actually reversible.
However, very severe dry eye always has symptoms of eye discomfort, which can not be relieved by itself, which is likely to affect corneal health and eventually lead to blindness.
Authoritative experts suggest that once eye discomfort occurs, especially if children often rub their eyes, they must go to the hospital to check eye diseases in time.
4 eye drops relieve symptoms, but it is more dangerous to use them wrong!
Don't be afraid of friends with dry eye symptoms. Experts say that mild to moderate dry eye can be relieved by eye drops. However, the use of eye drops has a doorway. Using the wrong eye drops can not only relieve symptoms, but also affect your overall health. You need to choose eye drops containing specific ingredients.
(1) The eye drops of sodium hyaluronate and polyvinyl alcohol are artificial tears, which can relieve the symptoms of dry eye.
(2) Levofloxacin and erythromycin eye drops (ointment) are antibiotics. If it is used locally for a long time, it will produce drug resistance, so be sure to follow the doctor's advice.
The content comes from BTVi life