屈光不正(包括近视、远视、散光等)造成的视力下降,会直接影响人们工作学习和生活。因此,对屈光不正的检查、验光和配镜,在矫正视力方面起着重要的保证作用。 就目前科学技术水平发展来看,对屈光不正采用手术治疗,其结果还不太理想,达不到人们预想的效果。尽管有比较成功的治疗案例,如放射状角膜切开术角膜人工镜片术等,接受手术后,可以达到最佳矫正视力。但都因术后视力不稳定,或产生一定的副作用或并发症,而影响手术的推广和应用。因而,目前唯一可靠的办法还只有配镜矫正视力。 防治近视是一个关系民族健康的大问题,在世界上许多国 Fallen vision (including myopia, hyperopia, astigmatism, etc.) caused by vision loss, will have a direct impact on people’s work and study and life. Therefore, the inspection of refractive errors, optometry and glasses, in the correction of vision plays an important role in ensuring. The development of the current level of science and technology point of view, the use of surgical treatment of refractive errors, the result is not very satisfactory, people can not expect the results. Although there are more successful treatment cases, such as radial keratotomy corneal ophthalmoscopy and so on, after surgery, you can achieve the best corrected visual acuity. But because of postoperative visual acuity instability, or have some side effects or complications, which affect the promotion and application of surgery. Therefore, the only reliable method currently available is only glasses to correct vision. Prevention and treatment of myopia is a major issue related to national health in many countries in the world