Myopia patients need to wear glasses to correct their vision decline to a certain degree, but some myopic patients in the wear glasses vision will decline faster, what is the reason for this? A, bad eye habits Myopia was mostly caused by poor eye habits, many myopic patients in wearing glasses after the bad eye habits or not corrected, such as daily do not pay attention to the distance and time and posture of reading and writing, for example, too close, too long, lying down to read, too dark, and even unlimited watching TV and playing video games, these can lead to intraocular ciliary muscle spasm These can lead to spasm of the ciliary muscle in the eye, and over time, cause vision loss and increase myopic refraction. Second, the eye itself has developmental abnormalities Some of the myopia occurs with the eye itself eye development abnormalities, this kind of patients although with glasses, because of genetic related, this kind of myopia wear glasses or not can present progressive refractive deepening, if wear suitable glasses, and pay attention to eye hygiene, strengthen eye care, to a certain extent can achieve to slow down the development. Three, glasses when wearing when not wearing some people wear glasses as a burden, afraid of aesthetic, but also some people mistakenly believe that wearing glasses the more wear deeper, so that the formation of sometimes wear, sometimes not wear, so that the eyes are often in an unstable state of regulation, may cause myopia deepening, vision loss. Fourth, the poor quality of glasses lens optical center and pupil distance error, if myopic astigmatism, its astigmatism and axis position is accurate, in short, the quality of glasses to improve visual acuity, reduce or eliminate eye fatigue is essential. Otherwise, it can also cause vision loss and myopia deepening.