How long can eye contact last? What effect will it have on the eyes?

August 23, 2004 "What do you know about contact lenses?" Live on the road to health. Experts from the Armed Police General Hospital will be invited to explain the knowledge of wearing contact lenses in a healthy and safe way, and answer relevant questions in the health forum. If you need this, you can post it here and leave a question. You can also come here to participate in our live webcast interactive session at10: 30-11:50 that morning. Moderator: wonderful hand

O The first person wearing contact lenses asks you-I just wore contact lenses, and there was nothing unusual in the first few weeks, but after wearing them for a long time, my eyes felt uncomfortable, and I could hardly open them and shed tears; After taking it off, I feel something in my eyes, which hurts. Am I not fit to wear contact lenses? But wearing this will really bring me great convenience. Is there any remedy? Is my eye inflamed? Can penicillin be cured? Time flies & it hurts to wear it: (:I used to wear ok glasses, conjunctivitis. I started wearing contact lenses the year before last. Not bad at first. I wear it every day. I'm fine from morning till night. I have felt pain since last year.

It's getting worse now. When you wear contact lenses, you will feel foreign bodies in your eyes. The most uncomfortable thing is that your eyes feel particularly sour, as if you have worn them for a long time: (I don't wear them very much now. If I know when I really want to wear contact lenses, I won't be able to wear them many days in advance, so I'm prepared to: (I'll take them off as soon as I get home, and I have to use eye drops ... Sorry, what's my problem? Is it so hard for me to wear contact? The rabbit is white for nothing.

Liu Chuan, an ophthalmologist at Armed Police General Hospital: Contact lenses are not suitable for wearing from morning till night, especially if you have conjunctivitis in your eyes. Wearing contact lenses like this for a long time is very easy to make conjunctivitis recur. On-site guests on the road to health

How to choose a pair of good quality contact lenses? How to choose a pair of good quality contact lenses and contact lenses that suit you? And how to care for glasses, what is Yang's nursing plan? Thanks Tingting, cute but short-sighted.

Liu Chuan, an ophthalmologist in the Armed Police General Hospital: Just choose the right company and manufacturer, and use the same company's nursing solution to care for contact lenses. It is best not to mix care solution and contact lenses between different companies. On-site guests on the road to health

Liu Chuan, an ophthalmologist at Armed Police General Hospital: I suggest you go to the hospital for a detailed examination. There may be three reasons for the damage of contact lenses to the eyes. One is the physical and mechanical damage to glasses, which is harmful to cornea because of blinking or blinking; Secondly, some people may be allergic to contact lenses themselves or nursing solutions; In addition, contact lens care solution can cause chemical damage to cornea, the most common is giant papillary conjunctivitis. Therefore, it is best to have a specialist examination and treat under the guidance of a doctor. On-site guests on the road to health

O what kind of people wear contact lenses? vinegar

Liu Chuan, an ophthalmologist at the Armed Police General Hospital: First of all, people with ametropia, that is, hyperopia, myopia and astigmatism; Secondly, colored contact lenses need to be worn in some occasions, and then some patients with corneal plaque need to wear them for beauty and work, such as actors, athletes and other people. On-site guests on the road to health

O I have worn it for several years, and now my eyes are dry. What should I do? I have been wearing contact lenses for several years, and I didn't feel anything when I first wore them. After wearing it for several years, I found that my eyes dried up after wearing it for several hours, especially in summer or autumn when the weather was dry. Sometimes I have to drop lens care solution many times a day to moisturize my eyes. My eyes are a little sour, and I feel a little foreign body sensation after taking off my lenses. What's going on here? What should I do? Xiao ∫?

Liu Chuan, an ophthalmologist in the Armed Police General Hospital: There is a tear film on the surface of human cornea, which plays a role in lubricating and nourishing eyes. Wearing contact lenses will affect its generation and retention time. It is suggested to go to the hospital for special examination such as tear film rupture time before or after wearing contact lenses. On-site guests on the road to health

O contact lenses, can contact lenses hurt your eyes? How long does it usually take to get a new one? Haohao 18 10 1

Liu Chuan, an ophthalmologist in the Armed Police General Hospital: Wearing contact lenses has both advantages and disadvantages for eyes. Generally, the longest time is two years, and the replacement time varies according to different varieties, but it is best not to exceed two years. On-site guests on the road to health

O some unclear questions ~ ~1. Can I drop eye drops when wearing contact lenses? 2. There are several types of eye contact, such as "casting the moon" and "casting the season". Are their service lives really the same as their names? For example, I use the "moon-throwing type". Can I wear it for two months and then throw it away? I'm not sure about the above two questions. I hope the experts can explain it to me ~ ~ Thank you! Lu 12

Liu Chuan, an ophthalmologist of the Armed Police General Hospital: First of all, answer the question of eye drops: It is best not to drop eye drops when wearing contact lenses, because it will cause chemical damage to the contact lenses themselves and change the structure of the contact lenses, except for one kind of eye drops, that is, tear-type eye drops. Its composition is the same as human tears, and it contains no preservatives, so it can be used when wearing. Second question: As you said, it is best not to wear these glasses beyond their wearing period. After a long time, some physical and chemical changes will inevitably occur. On-site guests on the road to health

O is it bad for your eyes to take a nap with glasses? Because here.

Liu Chuan, an ophthalmologist in Armed Police General Hospital: Wearing contact lenses to sleep is definitely bad for your eyes. Nowadays, soft contact lenses are very common. Taking a nap or wearing it for a long time will make the corneal endothelium edema, make the cornea hypoxia and cause damage to the cornea. As a foreign body in people's eyes, it will irritate cornea and conjunctiva, and keratitis and conjunctivitis will easily occur after a long time. On-site guests on the road to health

O doubt _ _ Excuse me, doctor: What side effects does wearing contact lenses have on eyes? Can it cause trachoma and other eye diseases?

I also want to ask, will myopia recur after laser treatment, and what side effects will there be? Thank you for waiting.

Liu Chuan, an ophthalmologist in Armed Police General Hospital: Improper wearing of contact lenses can easily cause eye infections and infectious diseases such as conjunctivitis and keratitis. It is necessary to clean, care and wear contact lenses correctly and hygienically to reduce the occurrence of these diseases. The recurrence of myopia after laser treatment refers to the phenomenon of vision decline, which generally occurs in three situations: one is that the eye development is not stable enough at a young age, and the myopia degree continues to deepen every year 100 degrees or more; There is also high myopia with myopia degree greater than 1000 degrees; Secondly, after laser treatment, we don't pay attention to the eye method, but the degree of myopia is generally not too deep. On-site guests on the road to health

O Ask an expert: Why do eyes get red after wearing contact lenses? How to prevent and eliminate it? Ask an expert: Why do my eyes get red after I wear contact lenses? How to prevent and eliminate it? I've only worn contact lenses for 1 years, but recently my eyes are always red (I only wear them for 5.6 hours a day, and wash them on time every six months), especially in the afternoon and when I blow the air conditioner, which is ugly and uncomfortable. I can only rely on Zheng Da Frieda's eye drops to relieve dryness and redness. What is the cause of red eyes? How to prevent and relieve symptoms? Can a long time lead to eye diseases such as chronic keratitis? Also, is there a chemical reaction between eye drops and contact lenses? (Most people use it), will long-term use lead to drug dependence? Last question: Contact lenses have a series of indicators, such as oxygen permeability, water content, curvature and so on. How to use these indicators to judge the quality of eyes? Wearing eyes feels dry and uncomfortable, but I think some opticians are vague and not serious about promoting high-profit contact lenses. It's hard for us to trust them, so ask an expert. Thank you very much Tonilak

Liu Chuan, an ophthalmologist at Armed Police General Hospital: I suggest you go to the hospital for a detailed examination. There are many reasons for redness and discomfort, which may be conjunctivitis or dry eye. Further examination is needed to confirm and take medicine under the guidance of a doctor. The higher the oxygen permeability and moisture content of contact lenses, the better for the eyes. The choice of curvature is related to your myopia. On-site guests on the road to health

O Can trachoma patients wear contact lenses? I have trachoma for two years. Can trachoma be cured? If yes, can I wear contact lenses after radical treatment? What eye drops are better for sand control? What kind of hidden shape is better? cyndi3 18 1

Liu Chuan, an ophthalmologist of Armed Police General Hospital: Trachoma is a chlamydia infection of the eyes, which is a kind of conjunctivitis. Diagnostic criteria are very strict. Many people mistake other types of conjunctivitis for trachoma. I suggest you go to the hospital for a detailed examination and take medicine under the guidance of a doctor. Contact lenses are also a stimulus to the conjunctiva. Your conjunctiva is inflamed. I suggest you stop using contact lenses. On-site guests on the road to health

O wearing contact lenses is worried about grinding cornea, and wearing glasses is worried about lengthening the anterior and posterior diameter of eyeball, making it a goldfish eye. Ask an expert to analyze the advantages and disadvantages of contact lenses and frame glasses! Thank you, Happy Lulu Bear.

Liu Chuan, an ophthalmologist of Armed Police General Hospital: The anterior and posterior diameter of eyeball has become what we call goldfish eye, which is not necessarily related to the wearing of frame glasses. This may still happen after wearing contact lenses. Contact lenses are more beautiful to wear and easier to move. At the same time, it will not be foggy in winter. But if you don't pay attention to the correct nursing and wearing methods, it is very easy to cause infection. Moreover, they are also foreign bodies to the eyes, which is very exciting. The field of vision of frame glasses is limited, which is different from that of normal people wearing contact lenses. Moreover, the heavy frame will also exert pressure on the bridge of the nose, but it will not stimulate the cornea and conjunctiva. On-site guests on the road to health

O the trouble of wearing contact lenses: what harm does wearing contact lenses have to the eyes? What about corneal ulcer? I found a small hole in the corner of my eye. What happened? Is it the result of unsanitary wearing contact lenses? Poetry fog glj

Liu Chuan, an ophthalmologist of Armed Police General Hospital: There is a kind of contact lens that is specially used to treat corneal ulcer. The medical function is to apply drugs on special contact lenses under the guidance of doctors to prevent corneal ulcer perforation and treat the ulcer itself. It is normal if you find a small hole in the corner of your eye near your nose. Small holes are called tear spots, one above and one below. The tears from your eyes are mainly discharged from here, and everyone has them. On-site guests on the road to health

O is high astigmatism not suitable for wearing contact lenses? Under normal circumstances, how much astigmatism is not suitable for wearing? Can anti-ultraviolet contact lenses correct astigmatism? Mufeng 838

Liu Chuan, an ophthalmologist in the Armed Police General Hospital: There are contact lenses specially used to treat astigmatism. You can go to a special contact lens company for consultation. Anti-ultraviolet contact lenses cannot correct astigmatism. On-site guests on the road to health

O is it really necessary to use a no-wipe care solution if you don't wear it? Will the disinfection be incomplete? Koalas

Liu Chuan, an ophthalmologist of Armed Police General Hospital: There is a non-wiping care solution, which has a good cleaning effect on contact eyes, but I suggest that you rub the lens with your fingers when soaking, just like washing clothes with a washing machine. Although the washing powder has a good effect, it will be cleaner after wiping.