There are many precautions for wearing contact lenses. If you do not operate according to the requirements, you may have many injuries to your eyes. It's no exaggeration to say that in all the bad wearing habits, sleeping with contact lenses is the most dangerous one. How serious are the consequences?
Life can't do without oxygen, so can corneal respiration. Under normal circumstances, about 80% of the oxygen needed by the cornea comes from the atmosphere. While sleeping, the cornea will obtain oxygen supply through the blood vessels and aqueous humor of the conjunctiva. Therefore, after getting up in the morning, the eyes will be edema due to slight hypoxia. After wearing contact lenses, when the lens material is good and oxygen permeability is high, it can basically maintain the physiological needs of the cornea, but when the eyes are closed, the lens will have a great impact on the process of corneal oxygen uptake. Therefore, if you wear contact lenses for a long time or sleep with contact lenses, the cornea is equivalent to asphyxia, which will accelerate the aging of corneal endothelial cells, making them unable to play a barrier role, and the resistance of the eyes will be greatly reduced.
At the same time, the lacrimal secretion absorbed in the daytime wearing process and the impurities in the external environment have been deposited on the lens without washing and cleaning. Sleeping directly in this way will not only cause certain friction damage to the cornea, but also cause eye diseases such as keratitis and conjunctivitis. If cornea cells are destroyed too much, they will face the risk of blindness.
It is said that the eyes are the window of the soul. When you love beauty, don't forget to cherish and protect your eyes. Wear contact lenses must bear in mind that no matter how tired or sleepy you are, you must remove the lenses before you go to sleep.