Eye drops have preservatives more or less, and eyes will rely on them for a long time. After all, eye drops are still used less manually. In fact, in principle, eye drops are not needed, and there is no need to use them frequently.
This is an excerpt from the Internet: Look.
Many people choose eye drops blindly, especially those who just want to make their eyes more comfortable. They don't feel any adverse reactions when they see others using them. In fact, careful analysis of several kinds of eye drops we commonly use, the composition is very different.
Pearl eye drops: the main components are pearl liquid and borneol. Traditional Chinese medicine believes that pearls have the functions of improving eyesight and improving eyesight, while borneol has the functions of clearing away heat, inducing resuscitation, reducing swelling and relieving pain. It is mainly used for treating asthenopia and pseudomyopia.
Runjie: The main ingredients are vitamin B6, taurine and aspartic acid. External use of vitamin B6 can improve local nerve function and reduce inflammatory reaction. Taurine is a special amino acid, an essential nutrient for human body and has the function of maintaining health. Scientific research has found that taurine has protective effects on eyes, lungs, liver and gastrointestinal tract. In addition, taurine can improve human immunity, maintain heart function and normalize blood circulation, thus eliminating fatigue. Aspartic acid has protective effect on liver and muscle. Runjie belongs to the "health" medicine, so it is generally not available now. Mainly suitable for people with visual fatigue and long-term computer operation.
Letun: The main components are nimazolin hydrochloride, neostigmine sulfate, dipotassium glycyrrhizinate, chlorphenamine maleate, potassium aspartate and vitamin B6. Naphazoline hydrochloride can directly stimulate receptors on blood vessels and cause vasoconstriction, thus alleviating congestion and edema caused by inflammation. Neostigmine methyl sulfate has a strong effect on skeletal muscle. Potassium glycyrrhizinate can prevent the release of histamine, and has anti-inflammatory, anti-allergic and moisturizing effects. Chlorphenamine maleate is chlorpheniramine, which is mainly used for allergic diseases of skin and mucosa in clinic. Letong is mainly used to treat asthenopia, optic atrophy, juvenile pseudomyopia and some chronic conjunctivitis.
Chloramphenicol eye drops: it is an anti-bacterial and trachoma drug, mainly used to treat bacterial inflammation and trachoma. Because chloramphenicol is an antibiotic, irregular use will lead to many problems such as bacterial resistance and secondary fungal infection in the future, and it cannot be ordered at will, so it has been changed from over-the-counter drugs to prescription drugs.
[Edit this paragraph] Top Ten Eye Drops Brands
Top Ten Eye Drops Brands in China:
1 Xinleton Eye Drops Mentholatum (Zhongshan) Pharmaceutical Co., Ltd.
2 Zhenshiming eye drops famous brand Jiangxi Zhenshiming Pharmaceutical Co., Ltd.
3 Shiny Eye Drops Famous Brand Jiangxi renhe group
4. Pearl Mingmu Eye Drops listed company (Hangzhou Tianmushan Pharmaceutical Co., Ltd.)
5 Tianshan Shiqing Eye Drops Hong Kong brand Hong Kong Yangchuntang Pharmaceutical Group Co., Ltd.
6 Shandong Doctor Lun Freda Pharmaceutical Co., Ltd., a well-known brand of Runjie/Runshu Eye Drops
7. Doctor's Eye Drops World Brand Shandong Doctor's Eye Drops Freda Pharmaceutical Co., Ltd.
8 Aili Sodium Hyaluronate Eye Drops Japanese brand Kanda Pharmaceutical Co., Ltd.
9 Shezhu Mingmu Eye Drops Fujian Shezhu Mingmu Eye Drops Co., Ltd
10 Xuecha Runzhu Eye Drops Customer Cognition Brand Xi Anjianchi Biomedical Technology Co., Ltd.
[Edit this paragraph] Frequently Asked Questions
When do you usually order eye drops?
1. At any time of the day, 17% 2. Before going to bed 17% 3. When the eyes are uncomfortable, 67%.
Expert comment: Generally, it is best to close your eyes for a few minutes after dropping eye drops, which is beneficial to absorption. Eye drops are better after getting up early, before taking a nap and before going to bed at night. At other times, you should pay attention to choosing eye drops when you have plenty of time. Don't eat them all at once, and do something else at once.
How many drops of eye drops should I order at a time?
1. One drop 17% 2. Two drops of 50% 3. Uncertainty 33%
Expert comment: 1 ~ 2 drops of eye drops once is enough. Too many drops can not only be absorbed, but also may cause adverse reactions. A drop of eye drops is about 30 microliters, but the storage in conjunctival sac is usually only 7 microliters. If more eye drops are dropped, the capacity of conjunctival sac can only be increased to 30 microliters at most, and the excess eye drops either overflow from the corner of the eye or flow to the nasal cavity along the nasolacrimal duct. For those eye drops that have no toxic side effects and stimulating effects, a few more drops are just a waste.
What is the basis for choosing eye drops?
1. Composition of eye drops 10% 2. Advertising 7% 3. The doctor suggested 30% 4. Pharmacy staff recommended 3% 5. The experience of oneself or friends accounts for 50%.
Expert comment: Although many eye drops can be selected by yourself, it is best to ask an ophthalmologist to check them before buying them, and then buy them according to the doctor's advice. If you must choose, you must read the instructions carefully. If you feel uncomfortable during use, seek medical advice immediately.
List of eye drops most commonly used by readers
1. Runjie 46% 2. Pearl Mingmu Eye Drops 30% 3. Chloramphenicol eye drops 16% 4. Letun 5% 5. The other 3%.
The problem of eye drops mixing
When I bought eye drops, I saw that this eye drop has such a function, and that eye drop has such a function. Their complementary function seems to solve my own eye problems, so when I use eye drops, I mix them up and drop another one five minutes later. For this method, some eye drops can be mixed and some cannot be mixed. Some eye drops will reduce the curative effect after mixing, and some will even produce toxicity. Therefore, if you want to mix eye drops, you should seek the doctor's advice and don't take it for granted.
Don't use some eye drops indiscriminately.
Many people order eye drops because others introduced them, especially when their symptoms are "the same" as others. In fact, it is very dangerous to do so. There are several kinds of eye drops that need special attention. Firstly, atropine eye drops are used to treat acute iridocyclitis. The main symptoms are redness, pain and decreased vision. Atropine can dilate pupils, diminish inflammation and prevent iris and lens from adhering. Because of its strong mydriasis effect and long action time, it usually takes about three weeks to fully recover after mydriasis. During this period, it is difficult to shrink it with drugs, so improper use of 1 atropine eye drops may cause irreparable losses. Some patients mistakenly used atropine because of "jealousy" symptoms, leading to blindness. There are also some drugs for preventing and treating myopia that have similar effects to atropine (such as tropicamide eye drops commonly used by teenagers, with the trade name of "Shuangxingming"), which can treat pseudomyopia by dilating pupils and relieving spasm. Although this drug has a short action time and usually disappears after 8 hours, it can't be used casually.
Hormone eye drops, such as cortisone acetate eye drops, should not be used indiscriminately. At first, these eye drops can effectively relieve dry eye and red eye, but long-term use will cause increased intraocular pressure, even optic nerve damage, visual field defect and vision loss, which will lead to corticosteroid glaucoma. Moreover, this kind of glaucoma has mild symptoms and slow course of disease, so it is difficult to find it in time in clinic.
Eye drops are not "necessities". In principle, eye drops are not needed. As long as computer users do the following, they don't need to take eye drops regularly: don't use the computer for too long, insist on using the computer for 40 ~ 50 minutes, ensure that their eyes rest 10 ~ 15 minutes, look far away, let their eyes fully relax, and work in front of the computer for no more than 6 hours every day. People who wear contact lenses usually need to pay attention to personal hygiene, wear and remove them in strict accordance with normal operation procedures, and don't have to always order eye drops. In addition to eye drops, there are some ways to relieve dry eye: do eye exercises, wet and hot compress with hot towels, and look at the distance.
Use eye drops moderately.
In order to maintain the sterility of drugs and extend the validity period of drugs, preservatives are usually added to ensure the quality. Although trace preservatives are harmless to eyes, repeated use of eye drops and long-term excessive exposure to preservatives may cause damage to eyes, resulting in damage to normal tear film and corneal epithelial cells. So in principle, don't use eye drops if you don't use them. If it must be used, it should not be used more than four times a day.
Matters needing attention in the use of myopia eye drops
For ordinary people, the most common thing is visual fatigue. If you feel sore eyes, you need eye drops to relieve them, but this should also be divided into reasons. Eye drops are not everything.
1. If you are nearsighted, but don't wear glasses, fatigue attacks are more frequent. You can use some eye drops, but from the doctor's point of view, it has little effect. Mainly because of eye muscle spasm, the eyes feel sore and uncomfortable. At this time, it is best to let your eyes have a rest, or wear glasses with the right degree to make your eyes comfortable and avoid the symptoms of eye fatigue. If the eyes are refractive, we should pay attention to the health care and rest of the eyes and wear correct glasses to relieve the symptoms of eye discomfort.
2. Being in front of the screen for a long time, on the one hand, has the influence of radiation, on the other hand, because the eyes are staring at the screen, the number of blinks is reduced, and most people who work in front of the computer screen are in air-conditioned rooms, resulting in dry eyes and terminal syndrome. At this time, you can use some eye drops that properly moisturize your eyes, you can prescribe artificial tears in your eyes, and there are some over-the-counter drugs. The advantage of artificial tears is that they stay on the surface of eyes for a long time and can keep the surface moist for 2 to 4 hours. The eye drops of health care products will be gone in about 5 minutes. But some of these vitamins can also relieve eye discomfort caused by ciliary muscle spasm. It varies from person to person. If you still feel uncomfortable after stopping taking the medicine, you'd better see a doctor.
Some people's eyes are uncomfortable and dry because they are hairy. In addition to refraction, there are recessive strabismus, especially recessive exotropia. Such patients are more tired than normal people. If they have strabismus eye drops, it won't solve the problem. Suggest a check-up. Chronic conjunctivitis is an inflammatory reaction caused by the proliferation of some non-pathogenic bacteria in the eyes. Such people should pay attention to eye hygiene and develop good eye habits.
4. Eye infection caused by wearing contact lenses, or eye discomfort is caused by infection, because people have a habit of rubbing their eyes with their hands when their eyes are sore or uncomfortable. Sometimes the eye itself may have eye corner conjunctiva and cornea damage, and it will be infected with injured bacteria after being rubbed by hand. The patient suffers from some chronic conjunctivitis or related eye corner diseases. It's best to order some anti-inflammatory eye drops. But don't mess around, just order an anti-inflammatory eye drop, and choose ordinary eye drops, such as chloramphenicol and other eye drops that are not very effective. Remember not to use eye drops with strong antibacterial and anti-inflammatory effects. People who wear contact lenses must take off their glasses according to the glasses instructions. Don't wear glasses for too long at a time. If you feel eye discomfort, you can use some anti-inflammatory eye drops appropriately, or you can order other types of eye drops.
5. Eye drops can't be used for a long time: At present, most eye drops for relieving fatigue contain preservatives, which will not only damage corneal epithelium, but also seriously damage conjunctival goblet cells. Some anti-fatigue eye drops can constrict blood vessels. Therefore, it is best for people to consult a doctor before using it and advise against long-term use. At the same time, antibiotic eye drops may cause the flora disorder of normal conjunctival sac, leading to bacterial infection under normal circumstances.