渐变多焦点镜在减缓青少年近视发展中的作用

The Effects of Progressive Addition Lens on the Progression of Juvenile-onset Myopia

目的探讨渐变多焦点镜对减缓青少年近视发展的作用。方法临床确诊为近视患者204例,年龄10～18岁,经睫状肌麻痹验光配镜,随机分为两组,一组为配戴单光镜,另一组配戴近附加+1.50D渐变多焦点镜。每半年同样方法验光一次,屈光度增加-0.50D者重新配镜,随访两年。结果戴镜两年后,单光镜组屈光度增加-1.61±0.73D,渐变镜组增加-1.31±0.66D,两组差异有统计学意义(t=3.0787,P<0.001)。结论与单光镜相比,渐变多焦点镜可减缓青少年近视的发展。

Objective The purpose of this study was to evaluate the effects of progressive addition lens on the progression of juvenile-onset myopia. Methods 204 myopic juvenile enrolled, after cycloplegic examination, 102 were randomly assigned to single vision lenses and 102 were assigned to progressive addition lens （＋ 1.50 D near addition）, measured the refractive power half a year for 2 years. While the diopter of myopia had increased -0.50 D, myopia of the juvenile should be corrected fully. Results Of the 204 juveniles, 201 （98.5%） completed the 2-year visit, myopia （spherical equivalent） increased -1.61 ± 0.73 D in the single vision lenses group and -1.31± 0.66 D in the progressive addition lens group. The difference in progression between the two groups was statistically significant （t = 3.0787, P 〈0.001）. Conclusions Compared with single vision lenses, progressive addition lens can retard the progression of juvenile-onset myopia.