Many people like to wear contact lenses to make their appearance more beautiful and confident. However, many people do not know that there are many occasions when it is not appropriate to wear contact lenses, so it is important to wear them appropriately. Patients with low myopia choose to wear frames or contact lenses to correct their vision, but in many cases wearing contact lenses is very inappropriate. Here’s how it works! People with colds often have a lot of germs on their hands, which can easily get into their eyes when they are taking or wearing contact lenses. In addition, colds are often accompanied by mild inflammation of the retina, and wearing contact lenses can make the inflammation worse. Many cold, cough and pain medications contain ingredients that inhibit tears. Reduced tear production can cause contact lenses to become too dry and less transparent, which in turn can affect vision. Contact lenses, so named because they are thin and transparent and difficult to detect, have become fashionable for today’s teenagers. However, contact lenses are not suitable for all people who need them. Who should not wear contact lenses? Elementary and middle school students are in a period of rapid growth and development, their eyes have not yet been shaped, and their awareness of self-care and ability to take care of themselves is poor. Contact lenses need to be cleaned and disinfected every day, and the procedure is cumbersome and not easy to adhere to. If primary and secondary school students wear contact lenses too early or for a long time, they are prone to corneal hypoxia and physiological metabolic disorders and other side effects; if the lenses are not cleaned and disinfected properly, infection will occur; if the lens curvature is not compatible with the cornea, it will cause corneal abrasion and epithelial detachment, which can lead to corneal ulceration or perforation in serious cases. Therefore, Pratt & Whitney ophthalmologists pointed out: primary and secondary school students wearing contact lenses should be cautious, if not particularly necessary, or to wear frame glasses is appropriate. For those with high myopia or farsightedness, refractive error, astigmatism, etc. who really need to wear them, they must go to a qualified hospital or professional optician to check, measure the required lens prescription, and learn how to wear them and disinfect the lenses to avoid future problems. The hands of people with colds often carry a lot of germs, which can easily enter the eyes when taking or wearing contact lenses. In addition, colds are often accompanied by mild inflammation of the retina, which can be exacerbated by wearing contact lenses. Many cold, cough and pain medications contain ingredients that inhibit tears. Reduced tear production can cause contact lenses to become too dry and less clear, which in turn can affect vision. Complications that can easily arise from contact lens wear for people with allergies include mild inflammation, itchy eyes, redness, conjunctivitis and swollen eyes. If these conditions are left untreated for a long period of time, vision may be jeopardized. If allergy sufferers must wear contact lenses, it is best to use them only during the day and to suspend their use at least one day a week. If inflammation occurs, it is best to stop using them. If the inflammation does not decrease after 2 to 3 days, seek immediate medical attention. Patients with glaucoma, chronic dacryocystitis, conjunctivitis, corneal ulcers, hyperthyroidism, etc., who are equipped with contact lenses and whose eyes are in an inflammatory phase, should wait until the inflammation disappears before wearing them. The most important thing is to make sure that your eyes are not unknowingly harmed and that your myopia evolves into other eye diseases.