Comparing the effects of different design aspheric lenses on myopia and astigmatism in adolescents

Objective To compare the control effects of three different types of aspheric lenses on myopia in adolescents, namely DIMS,HAL,and HORI, as well as their influence on astigmatism changes,provide support for the formulation of individualized myopia control plans. Methods A total of 207 myopic adolescents were selected and divided into the DIMS group (68 cases), the HAL group (60 cases), the HORI group (28 cases), and the single-focus lens group (51 cases). All patients were followed up for 12 months and their spherical equivalent refractive(SER), axial length (AL), diopter of cylinder(DC), and corneal astigmatism(AST) were monitored regularly. Result Four groups of patients were compared pairwise for each of the relevant indicators: Three months later, there was a statistically significant difference in AL growth ( P  < 0.05). All three types of aspheric lenses were superior to the SVL group, and the HAL group and HORI group were superior to the DIMS group; there was a statistically significant difference in AST growth ( P  < 0.05), and the DIMS group was higher than the other three groups. After 6 months, there was a statistically significant difference in the increase in SER ( P  < 0.05), and the SER increase in the HAL group was significantly lower than that in the DIMS group and the SVL group; the difference in the increase in AL was statistically significant ( P  < 0.05), and the HAL group and the HORI group were still superior to the DIMS group and the SVL group, while there was no significant difference between the DIMS group and the SVL group; there was no statistically significant difference in DC increase ( P  > 0.05); the difference in the increase in AST was statistically significant ( P  < 0.05), and the DIMS group was higher than the HAL group and the HORI group. After 12 months, there was a statistically significant difference in the increase in SER ( P  < 0.05), and all three types of aspheric lenses were superior to the SVL group, and the HAL group and the HORI group were superior to the DIMS group; the difference in the increase in AL was statistically significant ( P  < 0.05), and the HAL group and the HORI group were still superior to the DIMS group and the SVL group, while there was no significant difference between the DIMS group and the SVL group; there was a statistically significant difference in DC increase ( P  < 0.05), and the DIMS group was higher than the HAL group and the HORI group; the difference in the increase in AST was statistically significant ( P  < 0.05), and the DIMS group was higher than the HAL group. Conclusion The three types of aspheric lenses are all superior to the single-focus lenses in terms of myopia control. Among them, the control effect of HAL and HORI is more significant, and they have less impact on astigmatism.