The harm of teenagers wearing contact lenses? _Contact lenses_

Although contact lenses are widely welcomed by everyone, for those who are suitable for wearing contact lenses, contact lenses also have hidden dangers, so they need to be careful in wearing and nursing. So for the group of teenagers, it is actually not suitable. Let's take a look at the dangers of wearing contact lenses for teenagers. Teenagers are basically still in the learning stage, and they are not so thoughtful and careful in the care of contact lenses, which has buried hidden dangers for wearing contact lenses. And once the contact lenses are not clean, or the hands are not clean during the wearing process, the contact lenses are easy to breed bacteria, the eye infections are also easy, and the eyes will become price-sensitive. Eye infection, the more common keratitis is due to the lack of proper care and cleaning, which causes eye infection, and young people are prone to problems because of the school time and poor maintenance. This stage of adolescents is still in a growth and development stage, and the eyes are also in the development stage. The eye axis has not yet been shaped. If you wear contact lenses, you are only satisfied with the current situation, which is very unfavorable for the future growth and development of the eyes. Wearing contact lenses can easily damage the corneal epithelium, and more importantly, the corneal endothelial cells cannot be regenerated, and they cannot be restored to their previous state after damage, and in severe cases, blindness can be caused. Improper wearing of contact lenses by adolescents can also cause irregular corneal deformation, corneal failure syndrome and other problems. Teenagers wearing contact lenses will also hinder the metabolism of the cornea and reduce the resistance of the eyes. Since the cornea is covered by the lens, the oxygen permeability is also reduced, the conjunctiva is dry, and problems are prone to occur, and the metabolism cannot be carried out normally. If you wear it for a long time, the eyes are prone to dryness, photophobia, red and swollen eyes and so on. Corneal neovascularization occurs, because the cornea is transparent, and it needs to absorb oxygen from the air. If it is worn for a long time, it will cause the appearance of corneal neovascularization, the tissue of the cornea will change, and the transparency of the cornea will also be lost. If the blood vessels are serious, they will grow to the center of the cornea, which will seriously affect the vision. What's more serious is the rupture of blood vessels and the bleeding of the cornea. Corneal edema occurs because of abnormal corneal metabolism and oxygen absorption is also limited, which will cause corneal edema, resulting in corneal thickening, resulting in photophobia, blurred vision, eye pain and other adverse conditions when looking at things.