Pseudomyopia is caused by the constant contraction and spasm of the ciliary muscles due to frequent improper use of the eyes, which does not allow proper rest and thickens the lens. As a result, external parallel light rays enter the eye, and after the thickened crystalloids are flexed, the focal point falls in front of the retina, and it becomes unclear to see things in the distance. During this period, there is no organic change in the eye, and if proper rest and treatment are given, attention is paid to eye hygiene and reasonable use of the eye, there is hope that normal vision can be restored. However, if the pseudomyopia stage is not corrected and treated in time, it will develop into true myopia over time. If you suspect pseudomyopia, you can go to the hospital ophthalmology department for a dilated pupil examination and have your eyes examined after the ciliary muscle is paralyzed. If there is no change in refraction and your vision improves significantly or returns to normal after the dilated pupil, then it is only pseudomyopia. If there is a corresponding change in myopic refractive error after the ciliary muscle is paralyzed by dilated pupils, and the visual acuity does not improve after dilated pupils, and the visual acuity improves with the corresponding myopic refractive error, then this is true myopia. Optometry and spectacle fitting Optometry is the correct judgment of the refractive state of the eye. Lens prescription is the correction of the refractive error of the eye. Ciliary paralytic dilated optometry can diagnose pseudomyopia and true myopia, as well as true myopia with a partial pseudomyopia component. It is believed that pseudomyopia exists for a short period of time and can develop into true myopia within a short period of time, so it is necessary and important to closely observe the vision of the adolescent and to dilate the pupil in time for optometry. Pseudomyopia does not need to be corrected with glasses, and ciliary muscle paralytic agents or fog vision therapy are applied to relax the ciliary muscle, and the drugs are atropine and tropicamide. Some people believe that the blurred image is the cause of myopia progression, so with the exception of pseudomyopia, mild true myopia vision is better and does not affect normal learning life without glasses, if you can not achieve normal life, learning vision of true myopia need to wear glasses to correct. The reason for the progression of myopia after wearing glasses for true myopia is not due to wearing glasses, but due to unchanged long-time close eye use and other environmental factors.