Abstract: myopia is the most common disease in ophthalmology and the most important type of ametropia. It can be divided into pseudomyopia and true myopia. Make the distant object image image in front of the retina, resulting in unclear vision and showing the symptoms of myopia, which is called pseudomyopia.
pseudomyopia is relative to true myopia. True myopia is that the refractive system of emmetropia is at rest, that is, after the adjustment is removed, the far point of the eye is located within a limited distance. In other words, myopia is caused by congenital or acquired factors, the anterior and posterior diameter of the eyeball becomes longer, and the parallel light enters the eye and forms a focus in front of the retina, causing blurred vision. Pseudomyopia, on the other hand, has some regulatory effects when looking at distant objects.
on the surface, pseudomyopia is also blurred far and clear near, but there is no corresponding diopter change during mydriatic optometry. So why can’t you see clearly in the distance? This is due to the frequent incorrect use of the eyes, the continuous contraction and spasm of the ciliary muscle, the lack of proper rest, and the thickening of the lens. In this way, the parallel light enters the eye. After the thickened lens is bent, the focus falls in front of the retina, and it is not clear to see things in the distance.
experts pointed out that myopia is the most common disease in ophthalmology and the most important type of ametropia, which can be divided into pseudomyopia and true myopia. Make the distant object image image in front of the retina, resulting in unclear vision and showing the symptoms of myopia, which is called pseudomyopia. If we do not pay attention to the stage of pseudomyopia, it will further develop into true myopia. Pseudomyopia is caused by excessive regulation and spasm of ciliary muscle, which can not be relaxed. As long as the ciliary muscle is relaxed and the lens is restored, the symptoms of myopia can disappear; True myopia is caused by the long-term spasm of ciliary muscle, which oppresses the eyeball, resulting in the elongation of eyeball axis, and the distant object image can not be imaged on the fundus retina.
suggestions: relax and adjust by looking far: including looking far, lens health exercises, far fog vision and eye health exercises. Such as peripheral vision development training, interactive gaze training, crystal gymnastics training, etc. Improve the learning environment and cultivate good eye hygiene habits: including correct reading and writing posture. The reading time should not be too long. Don’t read in a dark environment, reduce the burden of students, ensure a ten minute break between classes and an hour of physical exercise every day. According to the characteristics of pseudomyopia that can disappear if treated and relapse if not treated, the above methods have a certain effect and need to be actively treated.