Conclusion The corneal refractive powers and the length of optic axis are two factors for the degree of simple myopia of teenager and the optic axial lengths are main factor.

• 结论青少年单纯性近视的屈光度与角膜曲率及眼轴长度密切相关,且眼轴长度是单纯性近视眼形成的主要因素。