摘要
目的应用多光谱屈光地形图(MRT)分析近视患儿配戴角膜塑形镜(OK镜)后视网膜周边不同区域的离焦情况。方法回顾性研究。纳入2021年1月至4月在成都中医大银海眼科医院验配OK镜的近视患儿128例128眼(右眼),于戴OK镜前采用角膜地形图仪测量患儿角膜陡峭曲率、角膜平坦曲率、陡峭子午线方向的角膜偏心率和平坦子午线方向的角膜偏心率,光学生物测量仪测量患儿戴OK镜前的中央角膜厚度、基线眼轴长度(AL1)及戴OK镜1年后的眼轴长度(AL2),MRT获取患儿戴OK镜1年后视网膜离焦量(RDV)。根据戴OK镜1年后不同眼轴年增长量(CAL)将研究对象分为SAL组(CAL≤0.3 mm)和LAL组(CAL>0.3 mm),比较两组患儿戴OK镜1年后视网膜周边0°~10°、>10°~20°、>20°~30°、>30°~40°、>40°~53°范围内的平均离焦量(分别记为:RDV 0°~10°、RDV10°~20°、RDV20°~30°、RDV30°~40°、RDV40°~53°)以及视网膜0°~53°范围内总体离焦量的平均值(TRDV),视网膜上方、下方、颞侧、鼻侧四个象限的平均离焦量(分别记为:RDV-S、RDV-I、RDV-T、RDV-N),分析视网膜周边不同区域离焦情况对眼轴增长的影响。结果戴OK镜1年后,SAL组患儿视网膜周边RDV20°~30°、RDV30°~40°、RDV40°~53°、TRDV、RDV-I、RDV-T均低于LAL组(均为P<0.05)。相关性分析结果显示,AL1与CAL呈负相关(P<0.05);其他眼部生物参数、年龄、视网膜周边RDV0°~10°、RDV-S及RDV-N与CAL均无相关性(均为P>0.05);视网膜周边RDV10°~20°、RDV20°~30°、RDV30°~40°、RDV40°~53°、TRDV、RDV-I、RDV-T与CAL均呈正相关(均为P<0.05)。结论近视患儿视网膜周边10°~53°范围的离焦状态与眼轴增长密切相关,RDV越低眼轴增长越缓慢。
Objective To analyze the peripheral defocus of the retina in myopic children wearing orthokeratology lenses(OK lenses)using multispectral refraction topography(MRT).Methods A retrospective study was conducted.A total of 128 eyes of 128 myopic children(right eye)who got OK lenses in Ineye Hospital of Chengdu University of TCM from January to April 2021 were included.The steep keratometry(K s),flat keratometry(K f),eccentricity at the meridian of K s and eccentricity at the meridian of K f were measured by corneal topography before wearing OK lenses.The central corneal thickness before wearing OK lenses,baseline axial length(AL1)and axial length(AL2)after wearing OK lenses for 1 year were measured by optical biometer,and retinal defocus value(RDV)after wearing OK lenses for 1 year was measured by MRT.According to the change in axial length(CAL)after wearing OK lenses for 1 year,subjects were divided into the SAL group(CAL≤0.3 mm)and LAL group(CAL>0.3 mm).The peripheral RDV in the range of 0°-10°,>10°-20°,>20°-30°,>30°-40°,and>40°-53°(RDV0°-10°,RDV10°-20°,RDV20°-30°,RDV30°-40°,RDV40°-53°),average RDV in the range of 0°-53°,and average RDVs in the superior,inferior,temporal and nasal quadrants(RDV-S,RDV-I,RDV-T and RDV-N)of both groups were compared after wearing OK lenses for 1 year.In addition,the effect of RDV in different peripheral retinal regions on AL growth was analyzed.Results After wearing OK lenses for 1 year,the peripheral RDV20°-30°,RDV30°-40°,RDV40°-53°,TRDV,RDV\|I and RDV\|T were higher in the LAL group than those in the SAL group(all P<0.05).Correlation analysis showed that AL1 was negatively correlated with CAL(P<0.05),whereas age,peripheral RDV0°-10°,RDV\|S,RDV\|N and other ocular biological parameters were not correlated with CAL(all P>0.05).The peripheral RDV10°-20°,RDV20°-30°,RDV30°-40°,RDV40°-53°,TRDV,RDV-I and RDV-T were positively correlated with CAL(all P<0.05).Conclusion Peripheral retinal defocus in the range of 10°-53°in myopic children is closely
作者
帅钰
于嘉
张晶
郭玉娟
刘曦
周跃华
SHUAI Yu;YU Jia;ZHANG Jing;GUO Yujuan;LIU Xi;ZHOU Yuehua(Eye School of Chengdu University of Traditional Chinese Medicine,Chengdu 610075,Sichuan Province,China;Ineye Hospital of Chengdu University of TCM,Chengdu 610075,Sichuan Province,China;Beijing Ming Vision and Ophthalmology Hospital,Beijing 100062,China;The Second People’s Hospital of Yibin,Yibin 644002,Sichuan Province,China)
出处
《眼科新进展》
CAS
北大核心
2023年第12期983-986,991,共5页
Recent Advances in Ophthalmology
关键词
多光谱屈光地形图
视网膜周边离焦
眼轴长度
角膜塑形镜
近视患儿
multispectral refraction topography
peripheral retinal defocus
axial length
orthokeratology lenses
myopic children
