Corneal wear symptoms?

summary

The cornea is a completely transparent film at the front of the eye. Cornea has very sensitive nerve endings, if there is foreign contact with the cornea, eyelids will involuntarily close to protect the eyes. In order to keep the cornea transparent, it has no blood vessels and gets nutrients and oxygen through tears and aqueous humor. If you can ensure that the cornea moist, not dry, then the visual clarity, three-dimensional sense will be very good. It is just like the lens of a camera, which directly affects the texture of the image people receive. Corneal wear symptoms? Let's talk about it.

Corneal wear symptoms?

1. Indiscriminate use of eye drops makes your eyes uncomfortable. No matter what the situation is, many people pick up a bottle of common eye drops and use them. They think that eye drops will contain anti-inflammatory and soothing substances, so they don't choose eye drops seriously. If you don't choose the right eye drops and use them at will, it may not solve the problem, but also create new problems and discomfort, which will increase the burden on the cornea.

2. Contact lenses wearing contact lenses for a long time will make the cornea unable to contact the air, and the eyes will be unable to metabolize normally and the resistance will decline due to lack of oxygen. Wearing contact lenses for a long time, especially those with low oxygen permeability, can cause corneal edema, affect corneal metabolism and transparency, and cause blurred vision.

3. Staring at the screen for a long time or in the strong light, when our eyes are facing the computer, mobile phone and TV screen for a long time, the light beam is concentrated on the retina through the lens of the eye, which will make the eyes extremely tired. At the same time, due to the decrease of blinking frequency, the tear film used to keep the eye surface moist will evaporate faster, so that the cornea can not be moistened, The eyes will often feel uncomfortable.

matters needing attention

The light reflected from some surfaces is very bright, such as mirror buildings, granite, marble, etc. the strong light reflected suddenly stimulates the retinal cells of the eyes, and the eyes have no time to adapt and feel uncomfortable. Long time exposure to strong sunlight can also cause corneal lesions, such as corneal lesions in the elderly. These are simply the damage of light pollution to our cornea.