Recently, Shenyang Xingqi eye hospital said that its Internet hospital had suspended the sale of 0.01% atropine sulfate eye drops (also known as low concentration atropine eye drops). This eye drop once swept the Internet. Many parents believe that this eye drop can alleviate the myopia of teenagers, and call it the "miracle medicine for myopia". So, what is atropine? Is low concentration atropine eye drops really a "miracle medicine for myopia"? What signal did the online sales suspension release? The reporter of science and technology daily interviewed relevant experts. Atropine eye drops is a competitive muscarinic receptor (M receptor) antagonist, and its main component is atropine. According to the different concentration of atropine, atropine eye drops can be divided into 0.01%, 0.02%, 0.1% and other types. Generally speaking, considering the effectiveness of atropine, side effects, rebound probability after drug withdrawal and other factors, low concentration (i.e. 0.01%) atropine eye drops are mostly used in clinic. The existing experimental data show that atropine eye drops may act on multiple targets and delay the progression of myopia through various ways. "Its main functions include two aspects: one is to control the growth of the eye axis. The growth of the eye axis will accelerate the development of myopia, so controlling the rapid growth of the eye axis is a very important link in the prevention and control of myopia. Atropine eye drops can relieve the scleral hypoxia and increase the choroidal blood perfusion pressure, thus inhibiting the growth of the eye axis. The other is to relax the eye muscles. Atropine eye drops can block the innervation of cholinergic nerves to the ciliary muscle and the pupil sphincter, and it is effective Relieve eye muscle spasm and fatigue, relax the eyes, and then control the development of myopia. " An ophthalmologist in a third-class hospital in Beijing who did not want to be named told the reporter. In recent years, studies have indeed found that low concentration atropine eye drops can delay the development of myopia in children. However, atropine eye drops have specific clinical indications and are not suitable for all myopic patients. According to the above doctors, from the perspective of age, the users of this drug should be myopic patients between the age of 4 and adolescence, but children under the age of 6 need more rigorous monitoring and follow-up if they use this drug; In terms of power, atropine eye drops are suitable for people whose equivalent spherical lens power increases by more than 50 degrees every year; In addition, people with high myopia genetic history and other rapid progression risk factors can also use the drug under the guidance of doctors. The above doctors emphasized that patients should consider the effectiveness, side effects, indications, contraindications, etc. when choosing drugs. Can't reverse myopia has certain side effects in the eyes of some parents, low concentration atropine eye drops can not only delay the development of myopia, but also cure myopia. Is this really the case? In this regard, the above-mentioned doctor explained: "once true myopia occurs, it is difficult to reverse. We can only control the myopia degree not to increase too quickly. Low concentration atropine eye drops is a method to control the growth of myopia, but it cannot cure myopia." At the press conference held by the National Health Commission in May 2020, Wei Wenbin, vice president of Beijing Tongren Hospital and director of Ophthalmology, said that low concentration atropine eye drops are not "magic medicine", and some children use them