本文第一部分分析总结了青少年视力正常眼屈光度变化与生长发育的关系,以及二者在近视转化中的作用,发现新增近视的形成不仅因屈光度向近视侧的发展速度比保持视力正常眼快,而且还与入学时的屈光度(下文称基础屈光度)高低有关。关于基础屈光度与近视发病的关系文献中尚未见述及,因此,本文就有关问题作进一步分析,以探讨基础屈光度变化在近视成因中所起的作用。 The first part of this paper analyzes and summarizes the relationship between the change of visual acuity and the growth and development of normal vision in adolescents and their roles in the conversion of myopia. It is found that the formation of new myopia is not only because the development of myopia to the myopia is faster than that of maintaining normal vision, But also with the school refraction (hereinafter referred to as the basis of refraction) level. About the relationship between the basis of refractive error and myopia literature has not been addressed, therefore, this article on the issue for further analysis to explore the basis for changes in the causes of myopia in the role.