摘要
目的研究角膜塑形镜差异性调节幅度应用于轻中度近视患儿中的效果。方法选取2019年1月至2020年1月山西省汾阳医院眼科收治的82例配戴角膜塑形镜轻中度近视儿童。根据随机抽签法分为观察组及对照组,每组各41例。观察组戴镜前调节幅度低于平均值,对照组戴镜前调节幅度高于平均值。比较两组戴镜前后眼轴长度、角膜曲率及屈光度、角膜内皮细胞密度以及面积、并发症发生情况。并比较两组戴镜前后主观视觉质量变化情况。结果观察组戴镜12、24个月时眼轴长度分别低于对照组,差异有统计学意义(P<0.05)。观察组戴镜24个月水平曲率、垂直曲率以及屈光度均低于对照组,差异有统计学意义(P<0.05)。两组戴镜前、戴镜24个月时的角膜内皮细胞密度以及面积比较,差异无统计学意义(P>0.05)。两组视觉异常、过敏结膜炎以及角膜上皮点状染色发生率比较,差异无统计学意义(P>0.05)。两组戴镜24个月主观视觉质量评分均高于戴镜前(P<0.05);两组戴镜前、戴镜24个月时的主观视觉质量评分比较,差异无统计学意义(P>0.05)。结论调节幅度低的配戴角膜塑形镜轻中度近视儿童眼轴长度控制效果优于调节幅度高的儿童,且不会对角膜功能产生较大影响,不会增加并发症发生风险,有助于水平曲率、垂直曲率及屈光度的改善。
Objective To study the effect of differential amplitudes of accommodation of orthokeratology lenses in children with mild to moderate myopia.Methods A total of 82 children with mild to moderate myopia wearing orthokeratology lenses admitted to the Department of Ophthalmology of Shanxi Province Fenyang Hospital from January 2019 to January 2020 were selected.According to the random lottery method,they were divided into the observation group and the control group,with 41 cases in each group.The amplitude of accommodation before wearing lenses in the observation group was lower than the average value,and the amplitude of accommodation before wearing lenses in the control group was higher than that in the average value.The axial length,corneal curvature and diopter,corneal endothelial cell density and area,as well as the occurrence of complications before and after wearing lenses were compared between the two groups.And the changes of subjective visual quality before and after wearing lenses were compared between the two groups.Results The axial length of the observation group was shorter than that of the control group at 12 months and 24 months after wearing lenses,and the difference was statistically significant(P<0.05).The horizontal curvature,vertical curvature and diopter of the observation group at 24 months after wearing lenses were lower than those of the control group,and the differences were statistically significant(P<0.05).There were no statistically significant differences in corneal endothelial cell density and area before wearing lenses and 24 months after wearing lenses for the two groups(P>0.05).There were no statistically significant differences in the incidences of visual abnormalities,allergic conjunctivitis and corneal epithelial punctate staining for the two groups(P>0.05).The subjective visual quality score of the two groups at 24 months after wearing lenses was higher than that before wearing lenses(P<0.05).There was no statistically significant difference in subjective visual quality score before wearing lenses and 24 months after wearing lenses for the two groups(P>0.05).Conclusion The effect of axial length control in children with mild to moderate myopia wearing orthokeratology lenses with a lower amplitude of accommodation is better than that in children with a higher amplitude of accommodation.Such application will not have a great impact on corneal function,will not increase the risk of complications,and will contribute to the improvement of horizontal curvature,vertical curvature and diopter.
作者
司俊峰
刘院斌
武忠华
SI Junfeng;LIU Yuanbin;WU Zhonghua(Department of Optometry,Fenyang College of Shanxi Medical University,Shanxi,Lvliang 032200,China;Department of Ophthalmology,Shanxi Province Fenyang Hospital,Shanxi,Lvliang 032200,China)
出处
《中国医药科学》
2022年第20期173-176,共4页
China Medicine And Pharmacy
关键词
近视
调节幅度
角膜塑形镜
控制效果
眼轴
Myopia
Amplitude of accommodation
Orthokeratology lenses
Co ntrol effect
Ocular axis
