Pseudomyopia, as the name implies, is not true myopia, but only the illusion of having the symptoms of myopia. This often happens in teenagers, especially after a long period of study, the child’s vision will be blurred for a period of time to see far away, which is pseudomyopia. How should I distinguish whether myopia is real or fake? First, let’s understand the classification of myopia: true myopia: also known as axial myopia, the refractive power of the refractive interstitium is normal, the anterior and posterior diameter of the eye axis is prolonged, and light from a distance is imaged in front of the retina after entering the eye. Pseudomyopia: Also known as modulated myopia, the length of the eye axis is normal, but the refractive power of the refractive interstitium exceeds the norm, generally because the lens is over-regulated, so light from a distance is imaged in front of the retina. After pupil dispersion, the refractive power of myopia disappears completely, and the eye becomes orthoptic or hyperopic. Mixed myopia: A state in which both true and false myopia exist. After pupil dilatation, the refractive error of myopia decreases more, but the myopia is still myopic. This is the state of myopia in adolescents with myopia who have a heavy study load and are in the process of physical development. Pseudomyopia is a condition in which the ciliary muscle is constantly contracted and spasmed due to frequent incorrect use of the eye, and the crystalline lens is thickened due to lack of rest. As a result, external parallel light rays enter the eye, and after the thickened crystalloid refracts, 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. The most effective way to determine pseudomyopia is to go to a regular eye hospital and be examined by a professional optometrist, usually to dilate the child’s pupils, which allows the ciliary muscle to return to a relaxed state.