目的：观察早期真性低度近视者戴镜足矫或欠矫对近视发展程度的影响。 方法：回顾研究2010-07/2011-08来院就诊的50例100眼8~12岁在校学生，近视度-1.00~-2.00D。分为两组，均用睫状肌麻痹剂作医学验光，第1组50眼患者近视度-1.55±0.37D，戴镜足矫；第2组50眼患者近视度-1.50±0.48D，戴镜欠矫。将两组患者1.5a后的近视增长结果进行比较，应用t检验方法比较两组患者近视增加的程度。 结果：第1组患者近视增加-0.75±0.43D，第2组患者近视增加-1.55±0.27D，两组差异有显著统计学意义(P＜001)。 结论：对于欠矫的患者近视增长较快，近视在-1.00D以上者看远应戴足矫眼镜，以提高视网膜上成像质量，其近视程度的发展也较戴镜欠矫者减少。

AIM:To observe the effect of wearing glasses with full correction or undercorrection on the development of early true low myopia. METHODS:This retrospective study included 50 cases (100 eyes) aged 8-12 years old in school from July 2010 to August 2011. Diopter was between -1.00D and -2.00D. They were divided into 2 groups, both with cycloplegic mydriasis medical optometry. In group 1, myopic degree was -1.55±0.37D with full correction (50 eyes); in group 2,myopic was -1.50±0.48D with undercorrection (50 eyes), the development of myopia was compared with students t-test in two groups. RESULTS: Degree of myopia was increased -0.75±043D in the first group, that in the second group was -1.55±0.27D, the difference was significant (P＜0.01). CONCLUSION: The development of myopia is rapid if myopia wear glasses with undercorrection. People with more than -1.00D of myopia should wear glasses with undercorrection which can improve retinal image quality, so that the development of myopia may be decreased than that with undercorrection.