Often wearing contact lenses is harmful to the eyes?
Second, it causes eye fatigue. Wearing contact lenses for a long time will cause a kind of visual fatigue to the eyes, leading to various abnormal conditions such as dryness and acidity of the eyes, and may even lead to dry eye.
Third, accelerate corneal aging. If you wear contact lenses since childhood, with the passage of time, your corneal endothelial cell density will age, making it impossible to perform any eye surgery.
Fourth, deepen myopia. Wearing contact lenses all the year round will lead to deepening vision, and patients with high myopia may have symptoms of exophthalmos, which will affect their own image.
Fifth, cause eye diseases. Because the lens of contact lens will absorb the nutrients in tears, and then it will breed a large number of bacteria, which will induce a series of eye diseases, including keratitis, conjunctivitis, corneal edema, eyeball allergy and so on.
Sixth, keratoconjunctivitis. Incomplete cleaning, disinfection and deproteinization of care products such as lenses and mirror boxes will cause inflammation of cornea or conjunctiva, resulting in symptoms such as pain, fear of tears, congestion and redness of eyeball, leading to decreased vision.
Seventh, corneal edema. Improper wearing of contact lenses limits the water metabolism and oxygen metabolism of cornea, and may also cause corneal edema. Corneal edema can cause corneal thickening, leading to blurred vision, photophobia, eye pain and other symptoms.
Eighth, corneal epithelial injury. Corneal epithelial injury may lead to blindness.
Wearing contact lenses for a long time will have a great impact on the health of eyes, so everyone must pay attention not to wear contact lenses for a long time. Contact lenses should be mainly characterized by water content. If the water content is too high, the lens will absorb water from the eyes, causing discomfort and drying easily. But if the water content is too low, the oxygen permeability of the lens will be poor, and the eyes will easily feel dry, because oxygen is transmitted through the water in the lens.
Second, replace the lens in time. As long as pollution such as protein precipitation occurs, or the lens is deformed and discolored, the lens should be replaced immediately.
Third, avoid wearing contact lenses for the night. Soft glasses should not be worn for more than 12 hours every day.
Fourth, keep a good hygiene habit of wearing glasses. Including the timely cleaning, disinfection and deproteinization of the lens box, and keeping the fingers in a pollution-free state when wearing glasses and taking them off. Avoid eye makeup and long nails when wearing glasses, so as not to scratch or pollute the lenses and irritate the eyes.
Fifth, you should not spend too much time watching the computer and sitting at your desk every day. Take a rest every 1 hour and gently massage your eyes with your fingers.
Sixth, correct vision through myopia correction surgery and never wear contact lenses again. Myopia correction surgery is the most common and effective treatment method, which can be used to correct ametropia such as myopia, hyperopia and astigmatism. The nearsighted population in China is a huge group. According to the statistics of the World Health Organization, there are about 600 million nearsighted people in China, and the number of people wearing contact lenses is increasing year by year. We frequently use mobile phones, computers and other electronic products every day, and our eyes are already in a state of high load. If you wear contact lenses that directly contact the cornea, you should pay more attention to the maintenance of eye surface health.
The eye surface (eyeball surface) visible to the naked eye mainly includes cornea (a transparent film on the surface of black eyeball), conjunctiva (a transparent film covering the upper and lower eyelids and the surface of white eyeball) and tear film (a layer of tear tissue on the surface of cornea, which can make the eyes in a relatively moist state). The ocular surface is a natural micro-ecological environment with self-purification ability. Among them, the cornea is the outermost layer of the visual pathway, transparent and avascular. Normal physiological metabolism is mainly carried out through oxygen in the outside air and vascular network of corneal limbus. Corneal nerves are widely distributed and very sensitive. The so-called "sand can't get into the eyes" is the true feeling it conveys.
For the ocular surface, contact lenses are equivalent to "intruders" covering the entire cornea. Ophthalmologists have repeatedly stressed that contact lenses are not ordinary glasses but a special "commodity", which belongs to the third category of medical devices in China and the highest level of medical devices.
The third kind of medical devices usually refer to medical devices that are implanted into the human body to support and maintain life, and are potentially dangerous to the human body, and their safety and effectiveness must be strictly controlled. Although contact lenses are not implanted in eyes, there are certain potential risks to eyes due to long-term contact with cornea. Once serious complications such as infection occur, it will cause damage to vision, so it is under the state's key control.
Contact lenses include orthokeratology lenses, rigid oxygen-permeable contact lenses and soft contact lenses, among which soft contact lenses are more common, including contact lenses for correcting refractive errors, color flat contact lenses and therapeutic soft contact lenses. Everyone should buy from medical device business enterprises with relevant business licenses, such as optical shops and pharmacies, and check whether the purchased products have medical device registration certificates, whether there are medical device registration number, manufacturer name, production date and other information on the product packaging, and also keep the purchase vouchers properly. Some people think that wearing glasses is too ugly after myopia, which affects their image, so they choose to wear contact lenses. Indeed, contact lenses are very useful to a certain extent, and the most important thing is that they are beautiful to wear. For example, most of the current contact lenses are styles and colors, which can make the eyes look much better when they are in the eyes. Contact lenses not only bring convenience to people, but also bring many health hazards to people. In fact, if a person often wears contact lenses in daily life, the damage to the eyes is particularly great. What are the disadvantages of wearing contact lenses? Let me give you a brief introduction.
1, infected with bacteria. Some people forget to take off their contact lenses in their daily lives. If you wear it on your eyes for too long, it is likely to cause eye infection, so if you wear contact lenses, you must take them off in time.
2, dry eyes. Often wearing contact lenses may also cause a certain degree of dry eyes and uncomfortable eyes. Vision loss. Some people, if they often wear contact lenses, are likely to lead to a rapid decline in vision. Therefore, it is best to wear rimmed glasses instead of contact lenses in daily life.
4. Eye allergy. In addition, wearing contact lenses should also prevent eye allergies, because if you wear contact lenses often, it is likely to lead to eye allergies, which are more serious and difficult to cure. At present, there are many unqualified contact lens manufacturers in China, and most of the contact lenses produced by these manufacturers are unqualified. If consumers buy this kind of cheap but poor quality contact lens in the market, it will cause the rapid decline of eye vision and serious infection, so if they must wear contact lenses, it is best to choose contact lenses made by some well-known manufacturers, so as to minimize the damage of contact lenses to the eyes.
Also, if you wear contact lenses, you must remember to take them off, otherwise it will have a great adverse effect on your eyes. Often wearing contact lenses may also damage the cornea. Some people often wear contact lenses, and finally white spots appear on their eyes and their corneas are damaged.