Many people with myopia say, “I’ve been wearing contact lenses for more than 10 years, has my cornea become thinner? Can I still have myopia surgery? Will wearing contact lenses make the cornea thinner?” Although wearing contact lenses can cause some wear and tear on the cornea, it is not a certainty. So will wearing contact lenses make the cornea thinner? There is no absolute answer to this question, but inappropriate contact lens wear will interfere with the normal metabolic pathways of the cornea and can cause changes in cell morphology and corneal edema, or in more serious cases, keratitis and conjunctivitis. Contact lenses can cause irreversible damage to the cornea. Contact lenses are a medical device and should always be selected and worn under the guidance of a doctor or professional optometrist. In addition, contact lenses may not be suitable for everyone. Myopic friends suffering from keratitis, conjunctivitis, trachoma and people with chronic diseases such as diabetes are not allowed to wear contact lenses. Please be cautious. If you already wear contact lenses, please note the following points: 1. Do not wear contact lenses for more than 4 hours a day; 2. Do not wear contact lenses for more than 4 days a week; 3. Do not wear contact lenses overnight; 4. Prepare one pair of contact lenses and one pair of frame glasses each and use them alternately; 5. In the process of wearing contact lenses, if eye pain and photophobia symptoms occur be sure to go to the hospital promptly.