Misconceptions about wearing glasses for myopia

Misconceptions about wearing glasses for myopia

Have you ever had dilated eye refraction with glasses? Do you choose the best lenses? Have you had an eye specialist check your eyesight? Have you ever had contact lenses? These questions may seem simple, but not everyone takes them seriously, and it is easy to fall into misunderstandings when wearing glasses. One of the misconceptions Some people say: "Adolescent students become short-sighted, and wearing glasses will deepen the prescription." In fact, there is no scientific basis for this claim. We know that the occurrence and development of myopia is the result of genetic and environmental factors; Most of the myopia in students is determined by the environment. Adolescents are in the process of eye development, due to long-term close reading, excessive eye use, accommodative spasm and extraocular muscles acting on the eye wall, making the eye axis longer, as well as poor posture, picky eating and other lifestyle habits, resulting in myopia will gradually deepen. It's not because myopia deepens after wearing glasses. On the contrary, after wearing suitable myopia glasses, eye fatigue can be effectively delayed and controlled due to the relaxation of eye adjustment, coupled with paying attention to eye hygiene and correcting bad habits. Myth 2: You don't look good with glasses. This is not a reason, first of all, we need to understand that the purpose of wearing glasses is to improve eyesight and correct vision. If you don't wear glasses, it is easy to cause eye strain when you study for a long time. In the long run, it can make adolescent students lose concentration and decline their academic performance; Further deepening myopia. If you wear a proper pair of glasses for myopia, it's completely different. When shopping for frames, a professional consultant salesperson will provide you with personalized service, recommend products that are suitable for your face, and can also achieve the effect of making up for defects and increasing aesthetics. Myth 3: Wearing glasses is inconvenient and unaccustomed. Others use myopic glasses as binoculars. Patients with moderate (300 degrees) or myopia with astigmatism should not wear it for a while or not for a while, as that will also deepen the myopia. Teenagers below 300 degrees can not wear it when doing homework and reading, but pay attention to keeping a distance of 33 cm and correct posture, and should always wear it when looking away. In addition, there is also a process of getting used to wearing glasses, I always feel unaccustomed to it when I first wear it, and I will adapt to it after a few days, of course, this process should not exceed 2 weeks, otherwise I should check whether the refractive power and interpupillary distance are correct. If you don't wear glasses when you wear them, it is not easy to develop the habit of wearing glasses, and if you often wear and take off your glasses, the glasses are easy to be damaged and deformed, and your myopia will deepen. Myth 4: Some people want to borrow other people's glasses casually. This is wrong. Because everyone's refractive state is different, the power of the left and right eyes may not be the same. If you borrow other people's glasses, it will inevitably increase the burden of eye adjustment and promote the further development of myopia. Even if the diopter power is the same, it cannot be borrowed from each other, because the distance between the interpupillary distance of each eye and the optical center of the lens is inconsistent, and the distance between the two centers cannot completely coincide, and it is still not suitable to wear it. Myth 5: A pair of glasses, once and for all. After the glasses should be checked regularly, teenagers should generally be checked every 3 months, vision loss, should be equipped with appropriate glasses, because wearing glasses with too low power can not correct vision, can not reduce the burden on the eyes, so that the power will be deepened. In addition, the pupil distance is also increasing in the growth and development stage of the adolescent, so it is necessary to check the eyesight regularly, re-optometry and glasses regularly, and not only adjust the refractive power, but also update the interpupillary distance. Myth 6: You don't need to have a re-examination after wearing glasses Many parents no longer take their children with myopia to the hospital for examination after they are prescribed glasses. This approach is wrong. Clinical practice has confirmed that often asking children with myopia who wear glasses to go to the hospital for re-examination has the following advantages: 1. It can clarify whether the child's original pseudomyopia has been cured; 2. It can be determined whether the pseudomyopia in the child's mixed myopia has been cured; 3. It can clarify whether the child's original true myopia has developed. Therefore, parents should often take their children with myopia to the hospital for re-examination after they wear glasses, at least once a year, so as to keep abreast of the changes in the condition of their children with myopia. In addition, for school-age children who do not suffer from myopia, parents should also take them to the hospital frequently for eye check-ups. This is because normal sighted school-age children may also have vision loss if they do not adhere to scientific eye use. Myth 7 "For the beauty of the child's eyes, you can wear contact lenses for your child" Some parents think that once they put on their children's glasses, their children's eyeballs will protrude, affecting the beauty of their children's eyes, so they wear contact lenses for their children Expert Comments Director Yu talked about his own views on the wearing of contact lenses, he said: This is a commonplace problem, and he suggested that when choosing to wear contact lenses, you should consider whether your child needs it in particular. There is no need for students to choose to wear contact lenses, because the safety of contact lenses is relatively high when used, and some unscientific use methods will cause serious damage to the cornea. In particular, younger children cannot wear contact lenses, and because they will not be well maintained, cases of severe keratitis caused by wearing contact lenses in China are not uncommon. Myth 8 "Children can be equipped with glasses without dilating their pupils" As soon as the holiday arrives, parents are busy, many parents seize the time to arrange a variety of study classes for their children, but the child's eyesight is not good, and the glasses need to go to the hospital for dilated pupil examination. Expert Comments: This is very wrong, clinically young children must dilate their pupil refraction, so as to reflect the real vision of the child's eyes, not through the dilated refraction only by the results of computer monitoring with glasses will cause a lot of harm to the child's eyes, first of all, the child's pseudomyopia often "deceives the computer" to cause false examination results, and secondly, the child's farsightedness, high astigmatism will also make the computer examination feel "powerless". The age of using atropine long-acting mydriatic agent in our domestic hospitals is different, generally children over 7 years old do not have strabismus, amblyopia, and farsightedness can choose rapid mydriatic agent to dilate pupils, and Japanese Midori rapid mydriatic agent can generally return to normal after 6-8 hours. It does not affect the participation in various study classes in the summer. Myth 9 "Expensive eye glasses must be the most suitable for children" At present, there are many varieties of frame lenses on the market, and the price varies greatly. When choosing lenses for their children, many parents blindly pursue high prices, believing that only expensive glasses are the best, and the most expensive glasses are suitable for children's eye development. Expert Comments: The main premise for students to choose glasses is to suit themselves, not to blindly pursue fashion and choose rimless frames or perforated frames. Children under the age of 10 can choose glasses frames with soft edges and protective nose pads when they are fitted with glasses, and full-rim frames can be basically selected for children over 10 years old. When choosing lenses, children should first consider resin hardened spectacle lenses, which are fragile and can easily cause damage to children's eyes. Plastic lenses mainly require accurate astigmatism axis, the luminosity must be accurate, there can be no scratches, no bubbles and impurities on the lenses, and the prescription of the children's spectacle lenses must meet the quality inspection standards promulgated by the state. The error of diopter should be within the range required by the national standard. Myth 10 "Children's glasses must emphasize the consistency of both eyes" Many parents blindly pursue the same power of both eyes in order to achieve an aesthetic correction effect when dispensing glasses. Actually, it's not right at this time. Expert comments: The refraction of each child's eyes is not the same, clinically we call the child's binocular diopter more than 100 degrees -150 degrees is called anisometropia, of which more than 100 degrees of astigmatism and more than 150 spherical lens are uneven, which may cause the child's binocular image to be unequal, resulting in a decline in visual quality, after the hospital optometrist for the child's optometry, the pediatric ophthalmologist should also try glasses according to the specific conditions of the child's eyes, and each child tolerates anisometropia in both eyes to a different extent. Children with anisometropia should be equipped with glasses as soon as possible, experts emphasize that the difference in the power of the child's eyes can reach up to 100-2000 degrees, the younger the age, the better the tolerance, the greater the tolerance. Therefore, it is not right for parents to blindly pursue the same prescription of binocular glasses, which is not conducive to the development of children's binocular vision. Myth 11 "Children can only wear glasses without eye examination" Many parents find that their children's eyesight is not good, and often in order to save trouble, they take their children to the optical store on the street to use a computer optometry, and then hastily prescribe glasses for their children. Some parents think that their children's glasses are glasses and do not need to go to the hospital to have their eyes checked. Expert Comments: Deputy Chief Physician Wu Qian said: "There are many reasons for students' vision loss, and sometimes it is not necessarily caused by myopia and myopic astigmatism. Some fundus lesions also present with decreased vision. Therefore, a systematic ophthalmic examination should be carried out before optometry, Beijing Children's Hospital receives nearly 20,000 cases of children with visual impairment every year, and the pre-optometry examination found that there are many amblyopia, strabismus, congenital cataract, congenital glaucoma, congenital fundus disease, congenital nystagmus children, many parents find that their children's eyesight is not good, often mistaken for children suffering from "myopia", some children only found the above eye diseases when they went to the hospital to check their vision, but they have missed the best time for treatment. Parents also regretted it. In this way, ophthalmologists remind parents that once they find that their child has vision problems, they must go to the ophthalmology department of the hospital for a comprehensive examination, and then choose the right glasses according to the doctor's advice. Myth 12 "Like the new and hate the old" is no problem People with myopia will have teary eyes or symptoms such as dryness, foreign body sensation, blurred vision, etc., and in severe cases, vision will decrease. If you experience such eye fatigue, you can change into old glasses that you have worn before, which can relieve the symptoms to some extent. Why? Because when we see far away (5 meters away), our eyes basically don't need to adjust. But when the object is within 5 meters, it must be adjusted by the eyes to see clearly. The closer an object moves closer to the eye, the more the eye uses the more accommodations it uses to see near objects clearly. When the human eye is adjusting, the intraocular lens, suspensory ligament, and ciliary body work together and are indispensable. Just like a camera, it can capture both near and far objects. However, there is a limit to the accommodative power of the human eye, and it gradually decreases with age. Generally speaking, if a myopic patient re-opts for glasses, the prescription of the new glasses will be 75~150 degrees higher than that of the old glasses. During refraction, visual acuity is determined by looking at an eye chart 5 meters away, and the eye basically does not need to adjust at this time, and even if it does, the intensity of adjustment is limited.Looking at the computer screen at a distance of 50~60 cm in front of you, it is necessary to adjust it before you can see it clearly. If you often see things up close and continue to use your eyes for too long, your eyes will need to adjust frequently, and even if the adjustment system is in a state of tension all the time, your eyes will feel uncomfortable. Therefore, if you wear old glasses (preferably 150 degrees lower than the new glasses) when you see things for a long time, the adjustment force used for close-up work will be reduced, and the symptoms of eye fatigue will be significantly improved or even disappear. This method is also suitable for adolescent myopia when reading and doing homework.