The invention provides a 
big data fitting-based method and 
system for monitoring refractive growth of teenagers. The method comprises the steps of S1, building a 
big data model of a multi-factor dynamic refractive value; and S2, 
fitting out a dynamic refractive value of a tester by utilizing the 
big data model of the multi-factor dynamic refractive value in combination with basic information of the tester according to a 
naked eye vision detection value of the tester, obtaining reasons of 
poor vision of the tester, and if the tester needs to be subjected to deep refractive 
growth monitoring, 
fitting out a static refractive value of the tester by utilizing the big 
data model and performing long-term monitoring. By adopting the method and the 
system, the dynamic refractive value of the tester can be fitted out only by collecting the 
naked eye vision and the basic information of the tester, and the monitoring mode is simple; and for people needed to be subjected to refractive 
growth monitoring, the static refractive value of the tester can be fitted out only by detecting dynamic 
refraction, an adjustment range and various parameters of the 
biological structure of the eyes of the tester, without use of medicinal liquid for ophthalmoplegia, and the monitoring mode is simple.