Health is priceless, better than your wealth. Respect yourself and take care of your family. 50 years of quality work, 100 years of healthy life. Your health needs authoritative guidance. The Morning Post has opened a "famous doctor forum" for you, with a strong media platform, inviting famous doctors from China and abroad, to guide you to avoid diseases and strengthen your body and mind.
■Expert Profile
Wang Ningli, 47 years old, ophthalmology first-class chief expert, professor, chief physician, doctoral supervisor. He is currently the vice president of Beijing Tongren Hospital, the president of Beijing Eye Institute of Capital Medical University, the executive deputy director of Tongren Ophthalmology Center and the director of the Department of Ophthalmology.
Currently, he is the vice chairman of the Ophthalmology Branch of the Beijing Medical Association, a member of the Eighth National Pharmacopoeia Committee, a standing committee member of the Ophthalmology Branch of the Chinese Society of Ultrasound Engineering, and a member of the American Academy of Visual Sciences. He has been to the University of California, Shiley Eye Center for training and postdoctoral work.
He has been engaged in clinical and scientific research in ophthalmology for nearly 20 years, and now mainly specializes in glaucoma, cataract, and refractive error, in which he has abundant and solid theoretical knowledge and exquisite and skillful surgical skills. She has published 80 academic papers in domestic and international journals, edited and published 4 monographs, and participated in the preparation of 4 academic books.
■Modern lifestyle puts urbanites in visual "sub-health"
●Visual and urbanized environment
The development of human society today has an obvious feature, that is, living in an increasingly urbanized environment, human beings in the constant change of the environment at the same time, but also affected by the changing environment itself. The urbanized environment, including the natural environment, is the most important part of our lives. The urbanized environment, including the natural environment and the humanistic and social environment, brings various conveniences to human beings, and at the same time, it also has a certain impact on human beings' own functions and behaviors.
When it comes to vision, we all know that it is the ability to see or not to see. In fact, vision and biological evolution are closely intertwined. Human vision is the most perfect and highest level of development in the biological world of vision, not only can see things, there are stereoscopic vision and visual cognitive processes. In ancient times, human beings had to have very good far-sightedness, tracking ability, motion vision and night vision in order to be able to adapt to the living conditions and production methods at that time. Now that we have entered a modern society, large and medium-sized cities have entered the urbanization stage, and the change in lifestyle has created new requirements for visual function and vision.
Human beings receive information from the outside world, 80% of which comes from the visual organs. In ancient times, the Chinese used the word "smart" to represent a person's ability to think and be intelligent, "cong" to represent good hearing, and "ming" to represent eyesight, and in fact, the ancient people knew that. In fact, people in ancient times knew that the level of a person's ability to learn and receive knowledge is closely related to the quality of his hearing and eyesight.
Artists say that the eyes are the windows of the soul. From the perspective of medical biology, the eyes are indeed the windows of the soul, because the only blood vessels in the human body that can be seen with the naked eye are the fundus vasculature, which can detect a number of systemic disorders such as arteriosclerosis through fundus examination, and the only nerves that can be seen are the optic nerves in the cranial nerves. When a person loses his eyesight, it is not a person who is affected, but it will bring pressure to the family and the society.
●Visual "sub-health" deserves everyone's attention
Technological development has brought more visual experience to human beings, and people in the city enjoy a more colorful and complex external world than those in the countryside, and visual cognition has been developed in an unprecedented way. Virtual reality technology brings more visual experience to human beings. In a general sense, in recent years, as people's awareness of self-care increases, more and more people are concerned about eye health, and people can get knowledge about visual health through various media.
The influence of the environment on people's visual function is multifaceted and multilayered. The changes in visual function and disease brought about by urbanization are also evident. The most obvious example is the increasing incidence of myopia, diabetic eye disease, hypertensive eye disease, and the current "epidemic" of "dry eye".
On the other hand, the incidence of infectious eye diseases such as trachoma and dystrophic ophthalmopathy is decreasing in urban areas as a result of improved sanitation.
More and more people are becoming concerned about the "sub-health" of their vision. Many people do not have obvious organic damage to their eyes, but it affects their quality of life. Beijing Tongren Hospital Ophthalmology Center has conducted a survey of outpatient patients, found that 60% of people suffer from different degrees of dry eye symptoms, they feel uncomfortable, eyes appear dry, easy to fatigue, congestion. In addition, long-term visual fatigue can cause dark circles under the eyes.
●It's all the trouble of urban life
Urban civilization has caused human eye diseases and functional changes, the incidence of myopia is gradually increasing. The occurrence of myopia is not only related to heredity, but also very closely related to the environment, especially with prolonged close reading. With the progress of society, the incidence of myopia will gradually increase in this century. From the perspective of human evolution, this is also an inevitable trend of development, because compared with our ancestors, we rely more and more on the function of near vision, and the function of distance vision is used relatively less time, especially the urbanized environment further limits the development of part of our visual function.
While the structure of our "eyeballs" has not changed much, the function of vision has changed to some extent. Human motion vision may have deteriorated to different degrees, and we may not be able to scan as sharply as people who have lived in environments with a wide field of vision for a long time.
The incidence of diabetes mellitus is gradually increasing among people in urban areas due to the influence of the environment, dietary structure, and living habits, and the incidence of diabetic eye disease is gradually increasing, becoming the third most common blinding eye disease.
Atmospheric pollution, computer screen radiation, various reflective materials in the environment caused by the decline in the function of the corneal conjunctiva and lacrimal gland, "chronic conjunctivitis", "dry eye" incidence should not be ignored.
With the development of urban transportation, the number of eye trauma is also increasing, and at the same time, due to the expansion of the scope of activities, the exposure to harmful to the eyes increased, increasing the chance of eye injuries.
●Video Terminal Syndrome---Office family can't resist
Video Terminal Syndrome, refers to the long-term gaze at the computer or computer screen, eye transient action is reduced, the tears can't be well and evenly distributed on the eye surface, resulting in dry eyes, eye astringency, fatigue, chronic Conjunctivitis and other eye discomfort symptoms, these symptoms may also be a dry eye disease.
Prolonged use of the eyes is very harmful to the eyes, for example, many people now come to the clinic said that they feel that they watch TV for a long time the eyes will be particularly astringent, particularly dry, sometimes there is a headache, eye pain, see things is also very fuzzy, a long time to operate the computer, play video games or watch TV often have eye fatigue, dry, itchy, burning, photophobia, etc., so that the office workers can not be prevented. The office family can not prevent.
Because of changes in the visual environment, due to long hours of watching TV, watching the computer caused by the "video terminal syndrome", more and more become the main cause of vision loss of young people. Ophthalmologists have found that the incidence of "video terminal syndrome" will increase dramatically due to changes in the visual environment.
Because the computer fluorescent screen consists of small fluorescent dots, the eyes must constantly adjust the focus to ensure that the vision is clear, too long, the eye muscles will be too fatigue. At the same time when gazing at the fluorescent screen, the number of blinks will be reduced by 10%, reducing the output of tears; and the eye is exposed to the air for a long time, so that the water evaporation is too fast, resulting in dry eyes and discomfort, and even serious damage to the cornea. The frequent use of air conditioning in office building environments leads to accelerated tear water being blown dry.
Prevention of computer terminal syndrome, the first need to pay attention to the following aspects:
■ Keep the distance between the computer screen and the eyes 50 to 60 cm;
■ Equipped with a special computer chair, adjust the seat height and backrest angle;
■ The geometric center of the fluorescent screen is located in the best below the plane of vision, but within 15 degrees of angle;
■ The most important point is that the use of a computer at a time is not the same as using a computer. The most important point is not to use the computer for too long a duration at a time, and take a 10-minute break every 50 minutes.
■ Should especially emphasize the importance of regular rest, which is the most effective way to prevent eye fatigue, it is best to get up and walk around every hour or so, and go to the window to look away for a while. Not only is it good for the eyes, but it's also good for your health. You can also drop some eye drops that can keep your eyes lubricated. For driving, reading and other vision fatigue caused by eye discomfort, you can also use regular rest to regulate.
●White-collar workers suffer from "old age"
Many diseases are closely related to aging, and the current situation is that the incidence of old age eye disease in white-collar workers is increasing, but many eye diseases can be avoided or reduced if they are detected and treated early.
The most common "old age" eye diseases among white-collar workers include high myopia, presbyopia, cataracts and glaucoma. High myopia causes the vitreous to appear cloudy, there are flying mosquitoes in front of the eyes, which is related to the white-collar workers do not pay enough attention to eye care, should be checked regularly.
Presbyopia has always been a common occurrence in the elderly. After a certain age, due to crystal aging and loss of elasticity, the ability to adjust reduced. This is the first time in the world that a person's eyes have been blurred when looking at something close up. But there are a lot of people who are not yet 40 years old but already have symptoms of presbyopia, with the incorrect prescription of glasses has a certain relationship.
Cataracts are caused by the clouding of aging crystals. There is no medication available to cure it, and surgery is the only effective treatment. For people with severe cataracts that affect their lives and work, surgery can help restore excellent vision. Mild cataract patients can wear appropriate glasses and sunglasses, eye drops and oral medication can slow down the progress of cataracts. White-collar workers should wear sunglasses when they go out to prevent damage to their eyes from excessive ultraviolet light.
The cause of glaucoma is aging, which blocks the tear ducts and prevents water from draining out of the eyeballs, resulting in increased intraocular pressure, which presses on the optic nerve and leads to impaired vision.
■Myopia is a lifestyle-related disease
Data show
■Myopia incidence is getting higher and higher, Shanghai, Beijing and other large and medium-sized cities myopia rate of up to 50-60%, in the medical school, the rate of myopia is even as high as 70-80%, elementary school, 3rd and 4th grade myopia rate also reached 30-40%. The rate of myopia in the 3rd and 4th grade of primary school has also reached 30-40%.
■ A recent survey shows: China's elementary school students myopia incidence rate of 22.78%, 55.22% of secondary school students, and college students up to 76.74%.
■China is a large country suffering from myopia, a survey in 1995 showed that 300 million people suffer from myopia, accounting for 33% of the world's myopic patients, of which more than 2 million people with pathologic myopia.
■ Some data show that the incidence of myopia is higher in women than in men. It is higher among Orientals and Jews and lower among blacks. It is significantly higher in cities than in rural areas, and there is also a link with the level of socio-economic development, occupation and education.
●More and more myopia in big cities
Myopia is one of the most common refractive errors, and people have known about it for thousands of years. With the civilization of modern society, the incidence of myopia has been increasing, and it has become one of the most prevalent eye diseases in the world, and WHO has included it in the list of blinding eye diseases that need to be solved urgently.
The cause of myopia, now there are a variety of sayings, but the more recognized cause is inextricably linked with long hours of close work, which can lead to the ciliary muscle in the extreme regulation of the state of work, the initial stage can become adjustable myopia (that is, generally speaking, pseudo myopia), can not be relieved after the development of pathologic myopia. It is also believed that the yellow race has a higher genetic susceptibility to myopia. Many genetic mutation sites have been screened for, but the jury is still out on the true cause of myopia.
In the city, people spend a lot of energy on close reading, the incidence of myopia is getting higher and higher, Shanghai, Beijing and other large and medium-sized cities myopia rate of up to 50% -60%, in the medical school, myopia rate is even as high as 70% -80%, elementary school, 3rd and 4th grade myopia rate also reached 30% The rate of myopia in the third and fourth grades of primary school has also reached 30-40 percent.
In the metropolis, most of the information we rely on comes from books and the Internet, and it can be said that 90% of the information is obtained by close reading. So eyesight depends on close reading, and due to the change in lifestyle, further dependence on close reading, to adapt to such a lifestyle, people produce a new so-called disease of modern civilization --- myopia.
●Should be correctly viewed myopia
Now many people still have misconceptions about myopia, once myopia is considered to be an eye problem.
In fact, Westerners are very open about myopia, which is why it is not as big a concern in Western countries as it is in Asian countries. Westerners are very comfortable with glasses, and don't even think of myopia as a disease, treating it as a natural part of wearing a hat or an umbrella. But it's not the same in the East, where some people find it hard to accept that wearing glasses makes them less perfect and different.
How to correctly look at the problem of myopia? Myopia is a lifestyle-related disease, an evolution of the survival of the fittest taken by humans to adapt to modern lifestyles. You have to be a good close reader in order to cope with close work, but over-adaptation creates the disease.
In order to reveal the impact of myopia on people's lives, eye scientists in various countries conducted separate epidemiological surveys on myopia. The results found that the incidence of myopia varies greatly among different populations, regions and races.
China is a large country with myopia, and the 1995 survey showed that 300 million people suffered from myopia, accounting for 33% of the world's myopic patients, of which more than 2 million were pathologically myopic.
Some data show that the incidence of myopia is higher in women than in men. It is higher among Orientals and Jews and lower among blacks. It is significantly higher in urban areas than in rural areas, and there is also a link with the level of socioeconomic development, occupation, and education level.
About 25% of adults in the United States have myopia, and the annual cost of myopia examination and correction in the United States is 4.6 billion U.S. dollars. China has not yet seen this report, but because China's population and the prevalence of myopia are much higher than that of the United States, especially Beijing, Shanghai and other large cities with high population density, the incidence of myopia is high, coupled with the annual increase in health care costs, it is estimated that the cost of myopic eye examinations and corrective treatments will be much higher than that of the United States in China. This shows that myopia is having an increasing impact on our work, life and economy. Research on the prevention and treatment of myopia is also becoming more and more important.
●Genetics is not a determinant of myopia
We often categorize myopia into simple myopia and pathologic myopia, which is often accompanied by various comorbidities such as retinal diseases, cataracts, and glaucoma, thus seriously affecting visual function.
Is myopia hereditary? At present, there are many claims. But racial differences in the incidence of myopia suggest that myopia is a genetically related eye disease, especially pathologic myopia, which runs in families.
Some studies have shown that subjects with a history of myopia in one or both parents have a higher susceptibility to myopia than subjects with parents without myopia. That is, children of highly myopic individuals are at high risk for myopia.
The genetic predisposition to high myopia greater than 600 diopters is greater, and people with highly myopic parents are at high risk for developing myopia. It can be said that in the case where both parents are highly myopic and the child has a close reading environment, his chances of developing myopia will be much higher than others. Lifestyle has a greater impact on myopia than genetics.
●Children's refractive errors may come from the fetal period
When a person is born, the eyeballs are flat and almost 100 percent of them are farsighted. As a person grows up, the eyeball is gradually stretched to become orthopic, and those that are overgrown become myopic. And a lot of eyeballs pulled over the eye caused by myopia, is due to the modern people generally less exercise, from the time of pregnancy, has been planted the root of the trouble, and the growth of the period was further worsened.
Once upon a time when mothers-to-be were pregnant, most of them have been laboring until just before the birth, while nowadays mothers-to-be are more pampered, sitting still during pregnancy, lying in bed for a long time, lack of activity, on the one hand, it will make the baby's stunted growth increase, while mothers-to-be's poor physique may also be inherited to the next generation.
According to statistics, small samples of children weighing less than 2,500g at birth and premature babies earlier than seven and a half months, whose eyes are more susceptible to oxygen deprivation, will have a myopia rate of nearly 3.6 times higher than that of normal children in adolescence. At the same time, the mother-to-be's little movement, as well as the lack of exercise of modern-day only children, makes the child's eye crystals less elastic, and in the process of development, the eyeballs are prone to overgrow and myopia.
With the high incidence of refractive errors, particular attention should be paid to preventing refractive errors in adolescents, and parents are advised to send their children to the hospital for examination as soon as they are found to be looking at objects in an odd position.
There are three main types of odd-looking postures in children: 1) looking at things with a tilted head, 2) squinting at objects, and 3) looking at things with their heads turned away. Once the above conditions are found, parents should take their children to do a pupil dilation optometry examination as soon as possible to determine whether the child is farsighted, nearsighted or astigmatic, and as soon as possible under the guidance of a doctor for treatment, and should not believe in false medical advertisements.
● Night lighting can lead to higher rates of myopia in young people
The visual environment has a close relationship with myopia. The incidence of myopia in China is among the highest in the world. A recent survey shows that the incidence of myopia in China is 22.78% among elementary school students, 55.22% among secondary school students, and up to 76.74% among college students.
The occurrence of myopia in young people is partly due to the parents have a high degree of myopia of genetic, most also belong to the improper use of the eyes caused by, especially with the work of the near distance, such as insufficient lighting, reading distance is too close to the reading time is too long, the font is not clear or too small, as well as the poor posture and so on with the occurrence of myopia, the development of myopia.
There is a lack of environments in urban areas that can provide young people with the opportunity to look at the world from a distance. Moreover, in the city, the roads, utilities and other buildings are often lit up all night long, changing the natural rhythm of light from day to night. There is no real "night" in cities. There has been a lot of research to show that the brightness of the light can significantly interfere with the biological rhythms of animals and the secretion of melatonin in the human pineal gland. And there are experiments to prove that the incidence of myopia is high in children who sleep with the light on at night.
China's famous scholar Prof. Hu Tanning in the mid-eighties, China's young people have conducted an epidemiological survey of myopia, indicating that the occurrence of myopia has a clear relationship with the students' excessive burden of schoolwork, close eye use.
●Simple myopia is not scary
Simple myopia is not scary, you just need to wear glasses, or contact lenses if you have a special job that requires it, or even excimer laser surgery. Trouble is medium and high myopia, that is, myopia develops to a certain degree, causing the eye axis to become longer, retina, choroid degeneration occurs when it enters the pathological myopia, bringing retinal detachment, fundus hemorrhage, vitreous liquefaction after detachment and other consequences, and even blindness. So medium and high myopia had to become the people and ophthalmology workers highly concerned about the problem.
Myopic children without a family history of myopia and other hereditary risk factors mostly develop only moderate myopia in adulthood, but those with risk factors and a rapid progression of myopia are likely to suffer from high myopia and pathologic myopia, making treatment and intervention in this segment of the population particularly important. Efforts to prevent and impede myopia have been ongoing for centuries, but eye hygiene, eye exercises, and the use of certain eye drops and devices are mostly ineffective and ineffective against pathologic myopia.
●Myopia correction needs to be square
Parents gave their children optometry tests and found that they had 200° of true myopia, but parents did not allow their children to get glasses, believing that as soon as they wore them, the degree would get deeper and deeper. Some teachers also change the child's seat from the back row to the front row in order to let the child see clearly, while others wear them sometimes and sometimes not. All these behaviors are wrong and will affect the child's visual development, which will not only lead to aggravation of nearsightedness, but also the occurrence of strabismus and amblyopia.
I believe that wearing glasses is a better way to correct vision. Therefore, once you realize that your child has myopia, you should wear glasses to correct your vision.
Surgery to correct myopia has become a new option for many patients who wish to remove their glasses, but it is not a cure for myopia. It is worth noting that while vision is improved after surgery, the potential for complications from myopia remain. Corneal refractive surgery has been widely used to correct vision in the last decade, and evaluations of the indications, long-term outcomes, and safety of these surgeries are still much in progress. My personal attitude is neither to advocate nor to oppose them.
●Wearing contact lenses should be concerned about oxygen permeability
With contact lenses, some problems can occur. For example, corneal hypoxia, the cornea originally breathed by taking oxygen directly from the air. Now, you put a layer over it, and while oxygen still gets through, it always gets less. According to research, after most people wear contact lenses, the cornea can use only one-third of the original oxygen. So what to do? The way the body fights localized oxygen deprivation is to increase local blood flow (by enlarging blood vessels) or to grow new blood vessels so that the blood can send a little more oxygen and nutrients through. It's like trying to increase the capacity of a highway by either widening it or building new ones. As a result, the so-called "red veins" (blood vessels) become visible, whether they expand or grow new ones.
Conjunctival inflammation can also occur with contact lenses. Allergies to the proteins in soft contact lenses, chronic irritation caused by the contact lenses themselves, eyeglass cleaning solutions, antiseptic solutions, and bacteria, molds, and amoebas attached to the contact lenses that are not killed can all cause inflammation of the conjunctiva. Once inflamed, redness, swelling, heat, foreign body sensation, pain, and discharge will appear.
●Laser treatment of myopia has a "forbidden zone"
"Thirty seconds to remove glasses", for people suffering from myopia is always particularly tempting, but not all people suffering from myopia can be excimer laser surgery, which has strict requirements for the selection of the treatment object. The selection of the treatment object has strict requirements.
Part of the myopia patients are often accompanied by some fundus disease or other eye diseases, they are not suitable for excimer laser surgery. According to the statistics of tens of thousands of surgeries, about 10-15% of myopic patients who come for excimer laser treatment are not suitable for the surgery. If they are reluctant to undergo the surgery, their vision may also be ideal in the early postoperative period, but they may suffer from many complications such as retinal detachment and cone cornea after one to two years, which may seriously damage their visual health.
For the post-surgery vision condition, except for a few myopic patients with good congenital conditions, not everyone can recover to 1.5 vision as some publicized. According to tens of thousands of surgeries in recent years, 85% of myopic patients can reach more than 0.8 vision on the first day after surgery, 90% can reach more than 1.0 one week after surgery, and 98% can reach more than 1.0 three months after surgery. Experts suggest that when myopic patients choose laser treatment for myopia, they should go to hospitals with strong ophthalmology strength. Before undergoing excimer surgery, it is best to know the hospital's equipment, testing instruments for imaging quality, and the advanced degree of surgery before making a choice. Do not believe in advertisements, be sure to understand the possible risks of surgery, the success rate is not 100%, and postoperative naked vision 1.0 does not mean that the imaging is good, see objects will be clear. At the same time, a comprehensive and systematic pre-operative examination is carried out in order to choose the appropriate treatment. Only in this way can the safety of surgery be fully guaranteed. Of course, the best means of correcting vision is still to wear glasses.
To carry out excimer laser surgery object conditions - age 18-55 years old; - myopia 2000 degrees, astigmatism 800 degrees, farsightedness 800 degrees or less; - myopia stabilized in the last 2 years; - lens best corrected visual acuity of 0.5 or more (high myopia fundus pathology of the eyesight of the people in the 0.3 or more); - by a comprehensive professional checkup, no eye inflammation, glaucoma, retinal detachment, Diabetes and other physical diseases that affect the surgery; - Wearers of soft contact lenses must stop wearing them for more than 3 days, and wearers of hard contact lenses must stop wearing them for more than 2 weeks; - Those who have the desire to undergo treatment without unrealistic expectations.
■Eye care tips
●Creating an environment for eye care
To create a small environment suitable for eye care, provide the opportunity to look into the distance, so that the ciliary muscle has the possibility of relaxation.
Cities like Beijing and Shanghai, facing the TV at home is close, in the office is also close to the computer, out of the door building to building or close, such an environment is not conducive to eye health.
Work should pay attention to improve the working environment and adjust the working method, the office should maintain ventilation and a certain humidity, work to pay attention to the appropriate rest, every 1-2 hours of work to rest for 10-15 minutes (eyes closed or gaze into the distance). When working, pay attention to adjust the height of the monitor, and the keyboard close to the monitor, which can relieve eyestrain and dry eye symptoms.
When watching TV at night, it is best to turn on a light on the back side of the TV set, at about 15 watts-30 watts, and the light should be soft, so that it can play a role in protecting your eyes.
●Choice of eye drops is a big learning
Eye drops have over-the-counter and prescription drugs. Generally speaking, even the health care type of eye drops can not often point, and can not point for a long time, because there are some preservatives in it, prolonged use is not good for the eyes. So when picking eye drops, pay attention to the instructions, whether it says it contains preservatives.
Therapeutic eye drops must be used under the guidance of a doctor, with the improvement of people's health care awareness, in most residents at home, there may be one or two eye drops, for "fatigue" or "anti-inflammatory". Do not know, ophthalmic diseases are ever-changing, only based on the observation of the external eye and can not grasp the root of the disease on the random use of drugs, often can be a lifelong disaster. Such as "red eye" may be conjunctivitis, may also be keratitis, corneal ulcers, subconjunctival hemorrhage, acute iridocyclitis, may also be acute closed-angle glaucoma.
Some patients with itchy eyes or chronic conjunctivitis, because the vision is not impaired, they go to the pharmacy to buy drugs, pharmacy staff is not an ophthalmologist, and not fully aware of the patient's medication for a long time, according to the patient's need to give medication, and in this way, a large number of "corticosteroids glaucoma" on the production, and, moreover, this type of glaucoma is often not easy to find. This type of glaucoma is often not easy to detect in time, until the late diagnosis of glaucoma, at this time, the damage to the vision has been irreparable.
I suggest that, under current medical conditions, it is not necessary to have ophthalmic medications in the home, and that ophthalmologists should be consulted or diagnosed in a timely manner when eye problems arise, even if the medications are available in the home or need to be used on a long-term basis, ophthalmologic counseling should be conducted from time to time.
I remember there was an 80-year-old man, had a bottle of tobramycin in the hospital for "eye redness", 3 days after the improvement. 3 months later, once again, eye redness, it is the same way, following the use of this drug, 3 days after the "stroke", at this point in time. The "red eye" is not the other "red eye", is subconjunctival hemorrhage, which is a precursor to hypertensive cerebral hemorrhage.
●The correct way of dispensing eye drops must also be popularized
I think the correct way of dispensing eye drops is a knowledge that must be popularized, as incorrect methods of dispensing drops can cause a lot of problems for us.
Be sure to wash your hands before dispensing eye drops, preferably while lying down, and don't use the first drop after opening the eye drop, so that you can use the first drop to rinse out any contaminants that may be present in the mouth of the bottle. Then use the index finger to pull open the lower eyelid, eyes upward, put the eye drops in the groove of the lower eyelid, do not put the eye drops directly on the black eye. After dotting, you should also gently pull the upper eyelid with your hand, so that the eye drops can be evenly spread on the surface of the eye. Finally, remember to use a cotton swab in the inner canthus of the eye to squeeze for 3-5 minutes after dotting the drops.
This is done because the eyes and nasal passages are connected, and right at the corner of the eye, and if you don't press down on the corner of the eye, the drops will quickly reach the nose and throat. One drop of eye drops at a time is usually enough. A fixed position is often maintained for long periods of time when the drops are dispensed, which can also cause discomfort over time.
● Eat well can also prevent eye disease
Folk have "eat what make up for what", although there is no scientific reason, but the eyes are a high energy consumption, high oxygen consumption organ, so we should ensure that three meals a day a healthy diet, including protein, starch, fat, vitamins, trace elements, etc., in the right proportion.
Liver, egg yolks, carrots contain a lot of vitamin A, for the lack of vitamin A caused by eye disease, eat some of these foods is certainly helpful to the eyes. For elderly patients can eat more fruits, due to the fruit contains a lot of vitamin C, D, E, in the antioxidant and anti-aging has a certain role. Wolfberry has the effect of nourishing the liver and brightening the eyes, long-term use is beneficial to eye health. The United States has a laboratory specializing in the study of goji berries, ginkgo and other plants to help the eyes.
From the point of view of Chinese medicine, snake gall has a clear liver and bright eyes, but this bright eyes is the need to use a dialectical point of view, but also with other drugs together to play a synergistic role, and need to be eaten only when.
I do not advocate that people with bad eyes rely on eating snake gall to achieve the effect of bright eyes. The bile should be consumed after it has been added to the medicine, and eating fresh bile as in some areas of the south is dangerous and may lead to infection.
●Stay away from the hazards of tobacco and alcohol
According to research, there are more than 750 kinds of chemical compositions in the smoke, including many toxic substances. Through animal experiments and clinical patient observation, this toxic substance can directly affect the metabolic function of eye tissue, occurring in both eyes painless, progressive vision loss, color vision disorders. Long-term smokers, especially when accompanied by excessive alcohol consumption or malnutrition, will develop tobacco toxic amblyopia.
Smoking can also cause elevated intraocular pressure (IOP), and studies have shown that in glaucoma patients, smoking a cigarette can cause IOP to rise by more than 5mmHg in 37% of cases. In normal people, smoking a cigarette only 11% of the people with intraocular pressure increased more than 5mmHg. Therefore, people with a history of glaucoma or family history, should try to avoid smoking.
Alcohol can make the blood vessels spasm, coupled with the mood of excitement to promote spasm aggravation, increased blood pressure, diabetes, hypertension, patients, due to the presence of varying degrees of atherosclerosis, blood vessels are more prone to rupture, resulting in retinal hemorrhage. If the hemorrhage occurs in the posterior pole can make the vision extremely reduced, occurs in the macula will lead to blindness. In addition, long-term excessive alcohol consumption, especially often drink a lot of strong alcohol, can cause digestive and absorption function is reduced, the body vitamin B family deficiency, conjunctivitis, optic neuritis, visual impairment and visual field defects.
Of course, a small amount of alcohol can be good for the eyes, and may have the so-called "blood" function. It has been shown that drinking alcohol can cause a temporary drop in intraocular pressure, especially in patients with glaucoma.
● Improper diet can lead to eye inflammation
We have found that some stimulating foods, such as spicy foods, can be the cause of ocular "wheal" and "acute dacryocystitis". And some seafood may be closely related to the occurrence and recurrence of uveitis. Therefore, the history of uveitis, especially recurrent uveitis patients, should pay attention to moderation of their eating habits.
Twenty-five to 40 percent of the elderly suffer from chronic conjunctivitis. After drinking alcohol, the blood vessels in the eye dilate and congest, the bulbar conjunctiva congestion, resulting in dry and uncomfortable eyes. So people with conjunctivitis should drink less alcohol and eat less spicy food.
For the elderly, especially with high risk factors for cardiovascular disease such as diabetes and hypertension