Definition of myopia: When the eye is relaxed, parallel light from the outside world (5m away) is refracted by the refractive system of the eye and focused in front of the retina, this refractive state is called myopia (Figure A). The clinical manifestation of myopia: seeing near objects clearly, seeing distant ones not clearly, squinting when gazing at distant objects (Figure B). Figure A Figure B What should I do if I am nearsighted? If the phenomenon of “myopia” appears, it is recommended to go to the ophthalmology department of a regular hospital for a checkup to determine whether it is true myopia or pseudomyopia. If it is true myopia, there is no medicine or method to treat it, only correction methods. Depending on the size of the myopia and the individual’s needs, it should be determined whether and how to correct it (commonly used myopia correction methods are: wearing frame glasses, wearing corneal contact lenses or keratomileusis, and surgery. Surgery is only suitable for adults with a stable prescription; keratoplasty or contact lenses are only suitable for adolescents and adults who do not have eye inflammation or ocular surface abnormalities, who are capable of self-care and have a high level of compliance; in comparison, frames are the most widely used); if the myopia is pseudomyopia, it can be treated with ciliary muscle paralyzing agents (such as atropine ophthalmic gel), which can completely relax the ciliary muscle, thus making the pseudomyopia caused by regulation The pseudomyopia caused by the regulation will then disappear. In addition, “myopia” can also occur when the lens density increases and blood sugar rises. Therefore, if you have trouble seeing clearly, it is recommended that you go to the hospital as soon as possible to get a clear diagnosis so as not to delay treatment.