AIM: To observe the changes of eye movement parameters before and after appropriate treatment for school-age myopic children, try to investigate possible mechanism and obtain the most appropriate protocol for juvenile myopia.

METHODS: After getting the parents consent, 50 school-age children(age 7～12 years old)with visual acuity <0.8 were enrolled. All the subjects existed inappropriate treatment including measuring refraction under non-cycloplegia, wearing over- or under-corrected spectacle or inappropriate spectacle parameters ect. All the subjects were treated with appropriate treatment including measuring refraction under cyclopedia, dropping raceanisodamine eye drops 1～2 drops three times per day, adjusting spectacle parameters to appropriate range, etc. Before and 6mo after appropriate treatment, eye movement parameters including positive and negative relative accommodation, amplitude of accommodation and sensitivity of accommodation were measured with the comprehensive refractometer.

RESULTS: There are statistical significance in the amplitude of accommodation, the positive relative accommodation and the sensitivity of accommodation(P<0.01)while no statistical significance in negative relative accommodation before and after appropriate treatment(P>0.01).

CONCLUSION: Appropriate treatment can save more accommodative amplitude and will benefit myopia progression.