三种M受体阻滞剂对成年近视患者调节及像差的影响
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摘要
第一部分三种M受体阻滞剂对成年近视患者调节的影响
     目的探讨三种M受体阻滞剂对成年近视患者调节的影响。
     方法自身对照研究。选取19名成年近视患者作为受试者,每位受试者分次滴2.5%洁霉素及三种M受体阻滞剂:1%盐酸环喷托酯、0.05%消旋山莨菪碱、0.5%托吡卡胺,2.5%洁霉素作为对照,两次用药至少间隔4天作为药物洗脱期。给药方法:滴双眼(先右眼后左眼,双眼间隔5分钟);每只眼睛滴药两次,两次滴药间隔5分钟,每次一滴。于滴药前及滴药后的10、20、30、45、60、75、90、120分钟采用Topcon电脑验光仪在暗室内测量药物干预前后受试者的瞳孔直径,在综合验光仪上采用负镜法测量药物干预前后的受试者右眼的调节幅度。使用SAS9.2统计软件对4种药物干预后的瞳孔直径及调节幅度进行方差分析,对1%盐酸环喷托酯及0.5%托吡卡胺干预后的最小调节幅度进行t检验,对0.05%消旋山莨菪碱及2.5%洁霉素干预后的最小调节幅度进行t检验。P<0.05有统计学意义。
     结果1、散瞳作用:滴用1%盐酸环喷托酯滴眼液及0.5%托吡卡胺滴眼液后120分钟瞳孔散至最大,与给药前相比瞳孔直径分别增大(1.34±0.81)mm及(1.59±0.89)mm,滴用0.05%消旋山莨菪碱滴眼液10分钟后瞳孔直径缩小,45分钟后瞳孔开始散大,120分钟后散至最大,与给药前相比瞳孑孔直径增大(0.63±0.30)mm,滴用2.5%洁霉素后瞳孔直径较给药前缩小,滴药后10分钟瞳孔直径最小较给药前缩小(0.27±0.15)mm,方差分析4种药物干预后不同时间点的瞳孔直径发现4种药物之间差别具有统计学意义(P<0.05)。2、睫状肌麻痹作用:1%盐酸环喷托酯滴眼液干预后10分钟开始起效,60分钟调节幅度为(2.01±1.20)D,120分钟调节幅度最小为(1.67±0.85)D, 0.5%托吡卡胺滴眼液干预后10分钟开始起效,30分钟调节幅度最小为(1.94±0.72)D,60分钟调节幅度为(2.05±0.70)D,睫状肌麻痹作用开始减弱,120分钟调节幅度为(3.75±1.52)D,t检验分析干预后的最小调节幅度2种药物之间差别无统计学意义。0.05%消旋山莨菪碱滴眼液干预后的最小调节幅度为(9.48±2.21)D,2.5%洁霉素眼液干预后的最小调节幅度为(9.56±3.28)D,t检验分析干预后的最小调节幅度2种药物之间差别无统计学意义。
     结论1.1%盐酸环喷托酯滴眼液对于成年近视患者的睫状肌麻痹效果并不明显优于0.5%托吡卡胺,但其睫状肌麻痹作用持续时间较长,适用于等待时间超过1小时的近视患者睫状肌麻痹验光。2.0.05%消旋山莨菪碱滴眼液有散瞳作用,无明显的睫状肌麻痹作用。
     第二部分三种M受体阻滞剂对成年近视患者像差的影响
     目的探讨三种M受体阻滞剂对成年近视患者像差的影响。
     方法自身对照研究。选取12名成年近视患者作为受试者,每位受试者分次滴2.5%洁霉素及三种M受体阻滞剂:1%盐酸环喷托酯、0.05%消旋山莨菪碱、0.5%托吡卡胺,2.5%洁霉素作为对照,两次用药至少间隔4天作为药物洗脱期。给药方法:滴双眼(先右眼后左眼,双眼间隔5分钟);每只眼睛滴药两次,两次滴药间隔5分钟,每次一滴。于滴药前及滴药后的30分钟应用Schwind波前像差仪检查药物干预眼的全眼像差,提取瞳孔分析直径4.0mm、5.0mm、6.0mm时的像差值,比较4种药物干预前后及4种药物之间在总像差(RMSg)、总高阶像差(RMSh)、3阶、4阶像差的均方根(RMS)值及球差、彗差等方面的差异。采用SAS 9.2统计分析软件对数据进行方差分析。P<0.05有统计学意义。
     结果1、随着瞳孔分析直径增大,总像差(RMSg)、总高阶像差(RMSh)、3阶、4阶像差的均方根(RMS),彗差,球差均增加,方差分析发现除洁霉素干预后的球差外其余各项像差值的差别具有统计学意义(P<0.05)。2、瞳孔分析直径为6mm时,药物干预前球差为(0.07±0.11)u m,1%盐酸环喷托酯干预后、0.5%托吡卡胺干预后、0.05%消旋由莨菪干预后及2.5%洁霉素干预黄后球差分别为(0.10±0.10)μm、(0.08±0.11)u m、(0.07±0.12)μm、(0.05±0.12)μm,1%盐酸环喷托酯及0.5%托吡卡胺药物干预后球差向正向方向增大,0.05%消旋山莨菪碱干预后球差无明显变化,方差分析比较药物干预前及4种药物干预后的球差显示差异无统计学意义。
     结论成年近视患者准分子激光术术前应用1%盐酸环喷托酯眼液或0.5%托吡卡胺眼液散瞳时,应注意其对像差特别是球差的影响。
Part one
     The effect of three types of muscarinic receptor antagonists on accommodation of myoic adults
     Objective To investigate the effect of three types of muscarinic receptor antagonists on accommodation of myopic adults.
     Methods 19 healthy myopic adults were enrolled in this self-controlled study. All eyes of the 19 were instilled 2.5% cillimycin and three types of muscarinic receptor antagonists:1% cyclopentolate hydrochloride,0.05% racanisodamine eye drop,0.5% tropicamide during the study with at least a 4-day washout-period between each treatment to rule out the effect of the previous agent.2.5% cillimycin was used as the control drug.(Two drops of each agent were applied in a 5-minute interval in both eyes(first the right eye then the left one within a 5-minute interval), each time with a single drop.) All eyes were treated with each drug twice in a 5-minute interval with one drop each time. Scotopic pupil sizes of both eyes and amplitude of accommodation of the right eye were measured before and 10,20,30,45,60, 75,90and120 minutes after treatment. Scotopic pupil sizes were evaluated with an Topcon autorefractor. Amplitude of accommodation was measured by minus-lens test on the RT-5100 comprehensive refractometer. The data were analyzed using the SAS version 9.2. Scotopic pupil sizes and amplitude of accommodation among four treatments were evaluated with one-way analysis of variance (ANOVA). The minimum amplitude of accommodation between 1% cyclopentolate hydrochloride and 0.5% tropicamide.0.05% racanisodamine eye drop and 2.5% cillimycin were evaluated with t test. P value of<0.05 was considered statistically significant.
     Results 1. The effect of pupil dilatation:120 minutes after 1% cyclopentolate hydrochloride and 0.5% tropicamide installation,the pupil sizes were enlarged to the peak size and approximately 1.34±0.81mm and 1.59±0.89mm larger respectively compared with the pupil size of the eyes before treated.10 minutes after 0.05% racanisodamin eye drop installation,the pupil size became smaller and maintained for the next 20 minutes. Then it recovered to baseline value at 45 minutes and continued to enlarge to a peak size of approximately 0.63±0.30mm larger than baseline value at 120 minutes.The pupil size became smaller in 2.5% cillimycin-treated eyes and the minimum pupil size was 0.27±0.15mm smaller than baseline value at 10 minutes. The scotopic pupil sizes after treatment of four drugs were significantly different; 2. The effect of cycloplegia:The effect of 1% cyclopentolate hydrochloride on accommodation started at 10 minutes after the last drop.The amplitude of accommodation at 60 minutes and 120minutes were 2.01±1.20D and 1.67±0.85D respectively. The amplitude of accommodation at 120 minutes was minimum. The effect of 0.5% tropicamide on accommodation started at 10 minutes after the last drop,the minimum amplitude of accommodation (1.94±0.72D) was measured at 30 minutes after the last dropand the effect of 0.5% tropicamide on cycloplegia became weaker 60 minutes after the last drop. The amplitude of accommodation at 60 minutes and 120minutes were 2.05±0.70D and 3.75±1.52D respectively. There was no significant difference between the two drugs. The minimum amplitude of accommodation of 0.05% racanisodamine eye drop and 2.5% cillimycin were 9.48±2.21D and 9.56±3.28D respectively. There was no significant difference between the two drugs.
     Conclusions 1.The effect of 1% cyclopentolate hydrochloride on cycloplegia is not obviously superior to 0.5% tropicamide,but its effect on cycloplegia lasts longer. So 1% cyclopentolate hydrochloride is advised when the patient should wait for more than 1hour before the refraction can be attained.2.0.05% racanisodamine eye drop has a significant impact on mydrasis and no obvious effect on cycloplegia.
     Part two
     The effect of three types of muscarinic receptor antagonists on ocular aberrations of myopic adults
     Objective To investigate the effect of three types of muscarinic receptor antagonists on ocular aberrations of myopic adults.
     Methods 12 healthy myopic adults were enrolled in this self-controlled study. All eyes of the 12 sbujects were instilled 2.5% cillimycin and three types of muscarinic receptor antagonists:1%cyclopentolate hydrochloride,0.05% racanisodamine eye drop,0.5% tropicamide during the study with at least a 4-day wash-period between each treatment to rule out the effect of a previous agent.2.5% cillimycin was used as the control drug.(Two drops of each agent were applied in a 5-minute interval in both eyes(first the right eye then the left one within a 5-minute interval), each time with a single drop.) All eyes were treated with each drug twice in a 5-minute interval with one drop each time.Human ocular aberrations were measured before and 30minutes after treatment by Schwind ORK Wavefront Analyzer.At the pupil analyzing diameter of 4.0 mm,5.0 mm and 6.0 mm, the values of the root-mean-square(RMS) of general (RMSg) and higher-order (RMSh), the root-mean-square(RMS) of the third and fourth,coma, spherical aberration were analyzed. The data were analyzed using the SASversion 9.2.Repeated measures ANOVAs were used for statistical analyses with a p value of<0.05 being considered as statistically significant.
     Results 1. The RMSg, RMSh, RMS3, RMS4,coma and spherical aberrations became larger as the pupil analyzing diameter became bigger. Except for spherical aberation after 2.5% cillimycin intervention a significant difference was found among different pupil diameters (P<0.05).2. At the pupil diameter of 6.0 mm,the spherical aberration was 0.07±0.11μm in undilated eyes, and0.10±0.10μm,0.08±0.11μm, 0.07±0.120μm,0.05±0.12μm after installation of 1% cyclopentolate hydrochloride,0.5% tropicamide,0.05% racanisodamine eye drop and 2.5% cillimycin.Compared with the spherical aberration in the untreated eyes, spherical aberration with applying muscarinic receptor antagonists such as 1% cyclopentolate hydrochloride and 0.5% tropicamide seemed to shift in a positive direction,while the spherical aberration in 0.05% racanisodamine-treated eyes did not change.But there was no significant difference in the spherical aberration among those drugs treatment analyzed by ANOVA.
     Conclusions The effect of 1% cyclopentolate hydrochloride and 0.5% tropicamide on ocular aberrations,especially spherical aberration,should be paid more attention if they are used before refractive surgery.
引文
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