Introduction
overcorrection, myopia, undercorrection
MYOPIA, LENS
In the information age, the prevalence of myopia among adolescents is increasing year by year, evidenced by up to 80% of myopia among Chinese high school students. Frame glasses are still the main method for myopia correction. Previous studies have shown that overcorrection or undercorrection will lead to the accelerated progression of myopia. Spherical-power full correction is recommended for adolescent myopia [From the middle of the nineteenth century to the early twentieth century, the interval of spherical-power trial case lenses was reduced from 1D to 0.25D and has been used up to now. However, we have not found the theoretical basis for setting the interval at 0.25D, which may be related to the cost of lens manufacturing at that time. In order to determine the adjustment interval of spherical-power lens more scientifically and reasonably and help patients get better visual quality, this study firstly calculated the theoretically derived resolution limit of human eye to spherical lens change based on the optical model, and then observed the actual resolution values of volunteers to compare the two for any consistency.