What are the dangers of wearing contact lenses for a long time?

Contact lenses are popular with many people, they make them look more beautiful and generous. It not only corrects myopia, but also does not cause adverse effects on the face. Of course, if it is not worn properly, or if you do not understand some precautions during long-term wear, it may cause certain harm to your eyes. For example, it can cause increased myopia and even eye allergies.

What are the dangers of wearing contact lenses for a long time?

1. Decreased eye resistance

Contact lenses prevent the cornea from coming into contact with air, and the eyes will suffer from a lack of oxygen, which is similar to the human body's "altitude sickness", making it impossible to metabolize normally and reducing resistance.

2. Causes visual fatigue and dry eyes. Wearing contact lenses for a long time can easily cause visual fatigue and even dry eyes. It causes eye soreness and itching, foreign body sensation, excessive eye mucus, dryness, burning eyes and blurred vision.

3. Cause eye allergies . Contact lenses absorb proteins, lipids, collagen, etc. in tears, causing them to deposit on the surface of the lens, breeding bacteria, and causing corneal edema, corneal neovascularization and allergic reactions.

4. Corneal abrasion. Unable to accept corrective contact lenses. Corneal abrasion may cause serious consequences such as corneal epithelial detachment or perforation. The concavity of some contact lenses does not match the convexity of the cornea, which causes irregular wear of the cornea and corneal ulcers, resulting in irreversible vision loss. Even after treatment, white spots will be left on the cornea.

5. Causes optic nerve paralysis. Long-term attachment of contact lenses to the eyeball can paralyze nerve endings and lead to decreased corneal sensation. Many patients are unaware that they have ulcerative keratitis.

What should I pay attention to when wearing contact lenses?

1. Before wearing contact lenses or cosmetic contact lenses, you must go to a regular optometry institution for an eye test to check whether you are suitable for wearing cosmetic contact lenses.

2. Choose a formal and professional purchasing channel. Don't think that you can get a bargain by buying from street vendors and unlicensed stores, and choose professional eyewear stores and regular eyewear websites.

3. When taking off and putting on contact lenses, you should first ensure that your hands are clean to avoid bacterial infection. When putting on makeup, you should put on your contact lenses before applying makeup, and when removing makeup, you should remove your contact lenses first.

4. Pay attention to the environment and time when wearing contact lenses. Try not to wear contact lenses in windy, dusty environments. When using a computer, try to shorten the time you wear contact lenses, because your eyes will easily become dry if you look at the display screen for a long time. The best time to wear contact lenses is within 8 hours, and avoid wearing them while sleeping.

5. Do not wear contact lenses in special circumstances such as when you have eye inflammation, cold, swimming, bathing, long-distance cycling, girls’ menstrual period or pregnancy. It is worth emphasizing that not everyone can wear contact lenses. For example, people with conjunctivitis, keratitis, glaucoma, severe trachoma, abnormal tear secretion, or those who are allergic to lens materials should not wear contact lenses; primary and secondary school students are in a period of rapid growth and development, so they should not wear contact lenses; in addition, if people who wear contact lenses encounter symptoms such as a cold or fever, it is best not to use contact lenses temporarily.