AIM:To observe the clinical effect of the midperipherv additional designed lenses and adjustment training on myopia in childhood.

METHODS: Eighty childhood(160 eyes in all)with myopia were included in this study. All patients were divided into two groups according to the methods of correcting refractive error: the midperipherv additional designed lenses and adjustment training group(treatment group, 80 eyes of 40 cases)and frame glasses group(comparison group, 80 eyes of 40 cases). The two groups had been measured myopia progress indicators and adjustment function indicators for ever 3mo. The results were compared and analyzed after 1a follow-up.

RESULTS: The visual acuity, refraction, axial length had a little change after wearing lens 1a in treatment group, there was no statistically significant difference compared with wearing before(P>0.05). The visual acuity decreased, refraction and axial length increased in comparison group, the differences were statistically significant(P<0.01). There was statistically significant difference compared with two groups(P<0.01). Accommodation amplitude and adjustment reaction index were improved and AC/A value decreased 1a after treatment in treatment group, and there were statistically significant differences compared with before treatment(P<0.05). Adjustment function index in control group had no significant improvement before and after treatment, with no statistical difference(P>0.05). The difference between the two groups was statistically significant(P<0.01).

CONCLUSION: Midperipherv additional designed lenses and adjustment training treatment of juvenile myopia is effective, which can delay the diopters development of myopic children, improve the regulatory function, control the development of myopia, improve the adjustment function.