Many nearsighted people choose to wear contact lenses for the sake of aesthetics and convenience, which seems to be risk-free, but in fact, there is a great potential crisis. Among the infections caused by contact lenses, up to 20% of the patients are severely infected, 10% need to be sent to the emergency room for treatment, and some also need corneal transplants.

At least a quarter of all contact lens infections are caused by improper use of contact lenses, and these infections can be avoided.

If you are a contact lens wearer, take note of these 6 wrong ways to use contact lenses:

1. Don't wear contact lenses when swimming or diving: if you wear contact lenses at this time, your eyes may get water in them, and if the water contains microorganisms, it may cause infections.

2. Remove contact lenses when you sleep: Studies have found that wearing contact lenses to bed increases the risk of infection by 6 to 8 times. So.

3. Replace your contact lenses when it's time: Contact lenses have a certain life span, so if your physician or professional thinks it's time to replace your contact lenses, just do it!

4. Don't use tap water to wash glasses: It is recommended to use special cleaning solution to wash contact lenses to reduce the risk of infection. Didn't replace contact lenses equipped in time: It is also recommended to use the opened maintenance solution preferably within 3~4 months, opened for too long will lose the sterilization effect.

5. Contact lens cases are changed regularly, also to prevent contamination.

6. Old and new maintenance fluid mixed: never to save a little money, and pour the new maintenance fluid into the old maintenance fluid, which will reduce the sterilization power of the maintenance fluid. (65)

In order to look pretty, many girls like to wear contact lenses, which means they look good and have a pair of beautiful big eyes. Although contact lenses are safe nowadays, there are some safety and care precautions that need to be taken when wearing contact lenses.

1、If your nails are too long, you need to cut them off, so as not to cause damage to the lenses and hurt your eyes. When you wear glasses, you must clean your hands and dry them with a towel. When you wear glasses, you should check the front and back, the front side is "bowl-like" lens, the back side is "disk-like" lens, if it is the back side, it is very uncomfortable to wear it, you have to take it off immediately.

2, to the evening when you have to take off, can not wear contact lenses to sleep, take off with care solution to thoroughly clean and disinfect the lens, must be cleaned. Otherwise it will lead to corneal inflammation.

3, many girls like to make up, be sure to wear contact lenses before make-up, make-up removal, take the lens first before removing make-up.

4, do not wear contact lenses to swim and drift, the water is not clean, drift impact is very large, easy to cause inflammation.

5、When wearing contact lenses, keep away from places with fire sources, such as picnic barbecues, burning materials, candles and other things with fire. In the case of high temperature will burn up, a careful will be blind.

6, do not wear contact lenses for a long time, pay attention to the safety of the eyes, do a good job of daily protection and care.

Contact lenses definitely belong to a great invention for nearsighted people. Because it not only frees our nose and ears, but also expands our vision.

But I've also encountered hidden problems from wearing contacts, such as one time when a contact lens broke in my eye and then until I took half of it out, I never knew if the other half had fallen out or slipped in my eye since there was no gap in my field of vision from nearsightedness. Finally went to the hospital and the doctor took the other half out. So here's a little science, I hope everyone can protect their eyes.

First, contact lenses are not for everyone

Before wearing contact lenses, it is best to go to the hospital for an eye examination and optometry. People who suffer from keratitis, dry eye or allergic symptoms should not wear contact lenses! So be sure to see your doctor to assess your eye health before wearing them to avoid unnecessary risks.

Second, always wash your hands before wearing contact lenses

Before wearing contact lenses, make sure your fingernails aren't too long so you don't scratch the lenses. And wash your hands with soap or hand sanitizer for about 30 seconds to remove bacteria from your hands. Otherwise the eye is likely to get infected.

Third, contact lenses can not be worn every day

The cornea needs to breathe and requires oxygen, 80% of which comes from the air. Wearing contact lenses every day can isolate the cornea from oxygen and cause damage to the eye. Therefore, when you normally wear contact lenses, make sure you let your cornea breathe fully at least two days out of seven, and wear them for a maximum of 6 to 8 hours a day, no more.

Fourth, contact lenses should not be worn to sleep

With the exception of specialized nighttime keratoconus lenses that can be worn to sleep at night, no other contact lenses can be worn to sleep!

V. What to do if you can't take off your contact lenses

Go to the hospital! Go to the hospital! Go to the hospital! Whether you can't take it off, or you're not sure if it's off! Go to the hospital! I read a report earlier that an old man had dozens of contact lenses removed from his eyes at the hospital! It's scary to think about.

(Invited reply: Dr. Hui Chen, Attending Physician, Department of Ophthalmology, Zhujiang Hospital, Southern Medical University)

Although contact lenses are classified as medical devices, they have become relatively popular in China, and soft contact lenses are readily available in many optical stores and even online. The reason why contact lenses are classified as medical devices is because they are in contact with the eye surface, which carries a certain amount of medical risk. How to minimize this risk:

First of all, you need to recognize the various parameters of contact lenses. For example, on the package is written 8.5, 8.6, 8.7, etc. This parameter is called the base arc, which is a parameter of the suitability of the contact lenses you buy, if this parameter is not suitable, there will be uncomfortable to wear, the lenses will be easy to shift or even fall off. And this parameter is what we need to go to the hospital to measure. In addition, DIA 14.1, DIA 14.2, etc. represent the directness of the lens, which also needs to match the corneal diameter. Therefore, the first step is to know the parameters of our cornea, and then we can choose a comfortable lens.

Secondly, you have to pick the right lenses for you. Nowadays, there are several types of lenses on the market, including disposable lenses (what we often call daily disposable lenses), semi-monthly disposable lenses, monthly disposable lenses, seasonal disposable lenses, and semi-annual disposable lenses. Of course, for hygienic safety, we recommend wearing daily disposable lenses. However, many people do not choose daily disposable lenses for economic reasons. Therefore, it is more important to choose the right one, which is based on a combination of water content, oxygen permeability and other aspects.

Choosing comfortable and appropriate lenses is the foundation of safety.

Finally, it is to pay attention to some matters. 1, wear the lens and hand cleaning; 2, the cleanliness of the lens case; 3, wear the timing of the choice, such as eye redness, secretions, allergies, keratitis, fever, colds, etc. is not suitable for wearing; 4, wear time, strictly according to the characteristics of the material and the instructions of the requirements of the wear; 5, timely replacement of lenses and care solution; 6, discomfort needs to be timely access to medical care.

The above points are a guarantee of safety.

Contact lenses are a generic term for corneal contact lenses. The precautions required for daily wear vary slightly for different types of lenses, but regular eye checkups are a must. Regular contact lenses (i.e. corneal contact lenses) are categorized into rigid contact lenses and soft contact lenses according to the material, while rigid lenses are categorized into daily wear and night wear according to the form of wear. Regular soft lenses are preferred according to usage and user preference. Regardless of the choice of lenses, wearing contact lenses is a medical act and readers are advised to go to regular medical institutions for fitting. Because hard contact lenses are slightly weaker than soft lenses in terms of wearing comfort, but the effect of correcting vision is better. In the process of wearing need to pay attention to environmental hygiene, for the dusty environment to avoid wearing lenses, dust into the eyes after the discomfort is strong, such as hard lens wearers dust into the eyes easily caused by corneal epithelial abrasion, the discomfort in a timely manner to seek medical attention. Night wearable lenses are generally keratoplasty lenses, night need to pay attention to the stability of wearing lenses, and at the same time according to the doctor's recommendation time to observe the stability of the situation, timely feedback of the corresponding time status, so that the doctor to make a correct diagnosis. The probability of corneal spotting is relatively high when wearing hard lenses, so it is recommended to keep artificial tears and anti-inflammatory eye drops in case of emergency. Because of the difference in materials, there are some differences in the methods and care products used to clean soft lenses and hard lenses. All soft lens care solution can enter the eye, cleaning requirements are more casual, according to the type of abandonment, in the specified time to replace the new lens; while hard lens care requirements are higher, some care solution can not enter the eye, cleaning must be differentiated clearly, to avoid misuse damage to the eyes.

The authoritative interpretation of Pharmaceutical Affairs, unauthorized reproduction, plagiarism will be punished.

You must pay attention to the following two items with contact lenses! Many people don't even feel their vision loss because they don't pay attention to it! It's not until one day when they really can't see anymore that they think something is wrong, but it's too late to recover!

The shorter the contact lens cycle, the healthier it is!

Contact lenses are consumables, and there are all sorts of cleaning issues that can occur during long cycles of product use, causing various objects to settle on the lenses before they stick to your cornea.

In the end, when your eyes get uncomfortable, you blame your contact lenses. It's not because you didn't wash them well enough. If you wash them carefully, then use a short cycle to minimize deposits and keep them safe.

1. Invisible should never be worn overnight!

Never! It's not like if it's okay once overnight, it'll be okay all the time! Are you testing your eyes?

Contact lenses overnight is likely to cause corneal adhesion of the cornea, they can not go off to ask for help, and finally to the hospital barely torn off, light epithelial damage, the need to assist in the treatment of drops, heavy left traces, can not be restored.

The most bizarre some people even continuously with a week, and then and I said, look at you on the bullshit, I'm wearing this did not go for a week, is not good, is a little red eyes, and finally went to the hospital to check, keratitis, I can only say, their own eyes, their own to cherish.

Contact lenses have a lot of benefits, but they can cause more trouble if not used properly!

Do you have a similar situation? Feel free to leave a message in the discussion forum. For more content, welcome to [medical jungle]!

　　More and more nearsighted people choose to wear contact lenses for the sake of aesthetics and ease of movement, but they may not know how to wear contact lenses correctly, what do you need to pay attention to when wearing contact lenses? The following summarizes some of the matters that need attention.

　　First of all, contact lenses must be worn with attention to contraindications. If you have eye diseases such as keratitis or conjunctivitis, you must not wear them; you must find a doctor to assess the health of your eyes before wearing them to avoid risks.

　　Secondly, contact lenses must be worn in a regular organization. No matter what kind of lenses you choose, wearing contact lenses is a medical act, and it is more assured to go to a regular medical institution for fitting. Depending on your needs and the degree of adaptation of your eyes, you can choose either hard contact lenses or soft lenses. Rigid contact lenses are slightly less comfortable than soft lenses, but they are more effective in correcting vision.

　　Thirdly, it is important to take care of sterilization when wearing contact lenses. For example, before wearing contact lenses must clean hands, make sure that the nails are not too long, so as not to scrape the lenses. Regular use of care solution for disinfection and cleaning, and be sure to pay attention to the maximum use cycle of three months for the care solution to be disassembled and used. Put the cap on tightly in time after each use, don't touch the mouth of the bottle with your fingers, and pay attention to the aseptic operation. Contact lens case is recommended to be replaced regularly, do not mix the old and new maintenance solution to save money, easy to breed bacteria.

　　Fourth, contact lens wear is also about timing. Don't wear contact lenses every day, and don't sleep with your glasses. The cornea needs oxygen, and if you wear contact lenses every day, it will isolate the cornea from oxygen, which will easily cause damage to the eyes. It is recommended to wear them for a maximum of 6 to 8 hours a day, and make sure to take them off when you go to bed. Also try not to wear contact lenses when swimming.

Click on the bottom of the page [Learn More] to see more answers or ask the doctor a question for free!

Follow "Family Doctor Online" headline, more health Q&A easy to see~~~~

1. Should not be worn for too long

The initial wearing time should be from the first day by 4 hours, 6 hours, 8 hours to 10 hours increased day by day, the eyes adapt to the maximum should not exceed 12 hours.

Because soft contact lenses have poor gas permeability, wearing them for too long will cause discomfort in the eyes due to a prolonged lack of oxygen, which can easily cause eye problems such as keratitis over time.

2. Don't wear it during "special times".

Generally speaking, wearing soft contact lenses is not recommended in foggy weather, during colds and flu, and during women's menstruation and pregnancy. After all, the eye is a very sensitive and fragile part of the body, and wearing contact lenses when the environment is bad and the immune system is low can be even more harmful to the eyes.

In a nutshell, it's best not to wear contact lenses when you're not sure what you can or can't do with them (including bathing, swimming, sleeping, etc.), so prevention is better than cure!

3. Pupils choose the regular brand

I believe that we must have heard because of the purchase of poor quality contacts and then pupil color loss led to eye problems in the news, in fact, not only color loss problems, glasses slippery lenses and other issues can not be underestimated. So in the purchase of contacts, must not be cheap to buy irregular brand production of irregular goods, or buy some of the so-called "Japan and South Korea brand" (but many foreign brands are good, here refers to the unknown brand I have not heard of).

4. Regular eye examination and good wearing habits

It is highly recommended that anyone who wears contact lenses for a long period of time should have their eyes checked regularly, as there are many problems that can't be felt but require a professional examination to be seen. So don't underestimate eye problems, and don't take them seriously just because you don't feel them. When the eyes are deprived of oxygen for a long time, the sensitivity will be reduced, and it is often found that the problem is already more serious.

Also be sure to wash your hands first when removing and wearing contact lenses! Wash your glasses after removing them before soaking them. It is also recommended that contact lens cases be replaced every 3 months, or if you are unsure, once a month is best.

Overall, the dangers of contact lenses are tied to your own behavior and many people may wear them for many years without problems, so the key is to look at the individual and not to blame them all on contact lenses.

Contact lenses, because of the material, do not have a particularly high oxygen permeability. Therefore, I do not advocate long-term wear.

If worn, special attention is paid to hygiene. Cleaning, wearing hygiene.

If you feel sick, go to the hospital for a checkup

Consciously reduce wearing time in these special cases

You're too close to the air conditioner.

When the cold air-conditioning wind blows directly on the glasses, it will accelerate the evaporation of water in the glasses, so that the lenses become dry and lose water, resulting in dry eyes, and if you do not make up for the humidity of the eyes in time, it is easy to cause keratitis, conjunctivitis and other diseases.

Prolonged outdoor activities

For example, cycling with contact lenses without protective lenses! The most extreme can cause the lens to shatter due to strong cold winds, posing a potential risk to the cornea and conjunctiva.

PM2.5 burst

PM2.5 particles will not only completely block the ventilation holes on contact lenses, leading to lack of oxygen to the eyeballs and loss of clarity of vision, but will also become a small colony of bacteria. Experiments conducted by the scientific research department show that the colonies on contact lenses on hazy days will be 11.5 times higher than when the air quality is normal.

Don't wear it when swimming and bathing

Before taking a shower, or before going for a swim, make sure that your contact lenses have been removed, because both of the above actions may cause water to splash into your eyes, and the water harbors bacteria, and the contact lenses we wear at this time, because of their inherent adsorptive properties, can become a breeding ground for bacteria. If you are really nearsighted, we recommend that you choose to buy swimming goggles with a degree.