Wearing a proper pair of glasses is the best way to prevent an increase in myopia and maintain useful vision. However, wearing glasses is a difficult thing for many parents to accept. They worry about their children’s psychology, whether they will become more and more introverted, and whether their children’s future career choices will be affected. There is always the thought that there might be a way to get rid of the glasses overnight and never touch those darn glasses again. For this reason, no expense was spared and doctors were sought everywhere. In the end, not only did they not take off their glasses, but the more glasses they wore, the deeper they became, and some had complications, which is precisely the misconception of myopia treatment. Here, a few misconceptions are pointed out to avoid myopia patients to take a detour again. Myth 1: Long-term use of ciliary muscle paralyzing drugs can treat myopia. It is true that some myopia is caused by regulatory spasm (pseudomyopia), which can be relieved by relaxing the regulatory ciliary muscle, and ciliary muscle paralysis drugs may improve or restore basic normal vision after use, but this part of the myopic population does not exceed 5%. The pupil dilatation test will reveal that some people, this time after the pupil dilatation vision improvement, the next time there is a chance, found vision loss, dilate a pupil, may maintain on a few weeks to a few months, some even a pupil dilatation, lifelong without wearing glasses. It is such a good thing that there are people who go into this misconception. I always feel that my child is one of the very few children with pseudomyopia, and even if there is no pseudomyopia now, there could be pseudomyopia at any time, and it would not be a problem to order medicine to prevent it. Now, it is safe to say that very few children have gone down the path of pseudomyopia becoming true myopia, and most children have not. Another pathway in the development of myopia is regulatory lag, and long-term use of medications that affect regulation may also cause regulatory lag to appear. Regulatory lag is the opposite of regulatory spasm, so if there is no spasm and you are still using relaxing medications, are you using the wrong medication? It needs to be clear that using the wrong medication is wrong. A highly selective M2 receptor blocker has been reported to control myopia progression, but requires vitreous cavity administration and is still in clinical trials. The various ciliary muscle paralyzing drugs currently in use are not highly selective and the route of administration is unlikely to be useful, and long-term use is not recommended. Myth 2, convex lenses can treat myopia. Another method that can relax accommodation is convex lenses. Convex lenses can reduce accommodation and prevent rapid myopic progression due to occult internal strabismus, and wearing convex lenses for long periods of time can also improve naked eye vision. In particular, patients with mild ciliary spasm can achieve one dilated pupil after 40 minutes of fog vision with +1.50Ds ortho-phthalmoscopy. Normal visual acuity may not be achieved as much as with ciliary muscle paralytics, because there are even fewer people with mild spasm, and wearing convex lenses has little effect on those with more severe spasm. Nonetheless, many people are tempted to wear them, hoping that they will be among the small percentage of people for whom they work. Indeed, with convex lenses, one sees an improvement in one’s vision or in others. The mechanism by which wearing a convex lens improves vision for most myopic patients is now largely clear: in addition to a slight relaxation of the ciliary muscle, there is also a partial increase in depth of focus. If you don’t understand the depth of focus, you can think back to when the “miracle mirror” small hole lens was popular, why people were fascinated and then abandoned. It is the use of changing the depth of focus to improve vision. In fact, blindly wearing convex lenses to cure myopia can only repeat the mistakes of the “xx miracle mirror”. The fact that wearing a convex lens only controls myopic eyes with hidden internal strabismus, which accounts for less than 1/4 of myopic eyes, and 1/4 of the people are sick, so all of them go to take medicine, is not eating the wrong thing. In fact, exotropia is also one of the causative factors that promote the development of myopia. It is still controversial whether exotropia will occur when patients without endotropia are treated again with convex lenses. Moreover, there are methods to control myopia with exotropia, so will the obsessive wearing of convex lenses delay the chance of effective control? Myth 3, improving naked eye vision is beneficial for controlling myopia. There is a significant difference in the rate of progression toward myopia with visual acuity above 0.6 and visual acuity below 0.5. Of course, the better the visual acuity the slower the progression of myopia. Finding ways to get your child’s vision to improve a bit and go down a slow path of development is the goal we strive for. However, there are several situations that are not desirable, one is the vision improved by training, using compensatory measures, such as: squinting, head down, side vision, etc. These methods will aggravate astigmatism, which is one of the factors that promote the development of myopia, but also may lead to the elongation of the eye axis because of excessive training, aggravating myopia; second is the vision measured with some tears, such as: smoke, stimulation, massage immediately after the measurement of vision, these vision results can only give Parents have the illusion that their child’s vision is better, thus delaying the correct control measures; third is unstable vision, whether it is good vision obtained by drugs, training or stimulation, as long as it is unstable, it may aggravate myopia development; fourth is the improvement of vision that does not reach the target, such as: trying to do everything possible still can not naturally see more than 0.6, in the channel of rapid development, in the long run, laborious and unpleasant. There is only one way to sustainably improve naked eye vision, and that is corneal shaping. This method also adjusts the peripheral defocus and provides clear control of myopia deepening due to peripheral myopia being less than central myopia. However, it requires lenses to be worn every night, and care is also needed to avoid damage to the cornea. There are far more misconceptions in myopia treatment, and it is possible to avoid going into misconceptions by having a thorough understanding of the mechanism of myopia development. Even if you are not able to understand those high level truths, you should know that there is not only one type of myopia. What works for this type of myopia may also be harmful for that type of myopia. If only one method is being used to treat all myopia, then it is time to pay attention.