近用复合棱镜防治青少年近视的临床研究

Clinical study of composite prism in treatment of juvenile myopia

目的研究复合棱镜防治青少年轻中度近视的疗效。方法将126例近视患者随机分为对照组和治疗组,各63例,治疗组配戴复合棱镜,对照组配戴普通树脂镜片,两组的年龄、屈光度差异无统计学意义。随访3年,观察屈光度、AC/A比率、眼轴及角膜曲率、戴镜舒适度等指标的变化。结果治疗组近视平均每年加深(-0.43±0.24)DS,对照组近视平均每年加深(-0.91±0.56)DS,两组相比差异有统计学意义(P<0.01);治疗组在戴镜前后眼轴和角膜曲率的变化无统计学意义;AC/A比值在配镜前后有变化,但差异无统计学意义;根据AC/A比值配制的近用复合棱镜配戴起来舒适率高(达90%以上)。结论配戴复合棱镜可以有效地控制或减缓近视的发展,且安全、舒适,患者易于接受。

Objective To investigate and evaluate the effects of composite prism on myopia progression in teenagers. Methods One hundred and tuenty-six patients with myopia were randomly divided into two groups： treatment group （126 eyes） and control group（ 126 eyes）. The treatment group weared composite prism and control group weared ordi- nary resin lenses. The two groups had no significant differences in age and refraction. They were followed up for 3 years, and refractive status, AC/A ratio, corneal curvature, and axial growth were evaluated and statistically analyzed. Results The myopic diopter deepened by （ - 0.43 _＋ 0.24） DS in treatment group and （ - 0.91 _＋ 0.56 ） DS in control group every year, and the difference was significant （P 〈0.01 ） ; the changes of the treatment group in axial length and corneal curvature had no statistical significance ; more than 90% of the teenagers in treatment group felt very comforta- ble and no overt strabismus appeared. Conclusion Composite prism can be used to control or slow the development of myopia effectively, and it is safe, comfortable, and acceptable for teenagers.