[1]谷天瀑,魏瑞华,林伟平,等. 双通道视觉分析系统评估配戴角膜塑形镜前后的视觉质量和眼内散射[J].眼科新进展,2015,35(5):445-448.[doi:10.13389/j.cnki.rao.2015.0121]
　GU Tian-Pu,WEI Rui-Hua,LIN Wei-Ping,et al. Assessment of optical quality and intraocular scattering before and after orthokeratology with a doublepass opticfd quality analysis system[J].Recent Advances in Ophthalmology,2015,35(5):445-448.[doi:10.13389/j.cnki.rao.2015.0121]
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 双通道视觉分析系统评估配戴角膜塑形镜前后的视觉质量和眼内散射
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《眼科新进展》[ISSN:1003-5141/CN:41-1105/R]

卷:
35卷
期数:
2015年5期
页码:
445-448
栏目:
应用研究
出版日期:
2015-05-05

文章信息/Info

Title:
 Assessment of optical quality and intraocular scattering before and after orthokeratology with a doublepass opticfd quality analysis system
作者:
 谷天瀑; 魏瑞华; 林伟平; 厉娜; 李颖; 赵少贞; 张红梅
 300384　天津市，天津医科大学眼科医院
Author(s):
 GU Tian-Pu ;  WEI Rui-Hua ;  LIN Wei-Ping ;  LI Na ;  LI Ying;  ZHAO Shao-Zhen; ZHANG Hong-Mei
 Tianjin Medical University Eye Hospital , Tianjin 300384 , China
关键词:
 ; 眼内散射; 近视; 角膜塑形镜; 视觉质量; 调制传递函数
Keywords:
 ; intraocular scattering ;  myopia ;  orthokeratology ;  optical quality ;  modulation transfer function
DOI:
10.13389/j.cnki.rao.2015.0121
文献标志码:
A
摘要:
 目的　使用双通道视觉质量分析仪器ＯＱＡＳ-Ⅱ对８～１６岁近视患者配戴角膜塑形镜前后的视觉质量和眼内散射变化进行评估。方法　收集２０１３年４月至１０月在天津医科大学眼科医院验配角膜塑形镜患者中随机选取８～１６（１２．０３±２．５６）岁３２例患者，屈光度为－１.００～－５．７５（－３．７７±１.７８）ＤＳ，散光度数为０～－１．５０（－０．４５±０．５７）ＤＣ。患者在配戴塑形镜前、配戴后７ｄ、１个月、３个月分别接受ＯＱＡＳ检查，包括调制传递函数（ｍｏｄｕｌａｔｉｏｎｔｒａｎｓｆｅｒｆｕｎｃｔｉｏｎ，ＭＴＦ）截止频率、客观散射系数（ｏｂｊｅｃｔｉｖｅｓｃａｔｔｅｒｉｎｄｅｘ，ＯＳＩ）、不同对比度下ＯＱＡＳ值（ＯＶ１００％、ＯＶ２０％、ＯＶ９％、ＯＶ平均）。ＯＱＡＳ检查视觉质量时统一使用４ｍｍ瞳孔直径。结果　ＭＴＦ截止频率配戴前为３０．１３±１１．４５，配戴后７ｄ为２３．３３±６．５８，１个月为２２．５２±７．１１；ＯＶ１００％配戴前１．０１±０．２９，配戴后７ｄ为０．８１±０．２１、１个月０．８５±０．１８；ＯＶ２０％配戴前１．０６±０．３３，配戴后７ｄ为０．８７±０．２２、１个月０．８９±０．２０；ＯＶ９％配戴前１．１４±０．３７，配戴后７ｄ０．８８±０．２３、１个月０．９２±０．２２；ＯＶ平均配戴前１．０７±０．３２，配戴后７ｄ为０．８５±０．２１、１个月０．８９±０．２１；ＯＳＩ配戴前０．８４±０．８５，配戴后７ｄ１．２５±０．７５、１个月１．２６±０．９０，均有升高（Ｐ＜０．０１）。配戴角膜塑形镜后３个月和配戴前各数据比较差异均无统计学意义（配戴后３个月时ＭＴＦ截止频率３０．５９±５．２３、ＯＶ１００％ ０．９８±０．２４、ＯＶ２０％ １．０４±０．２７、ＯＶ９％ １．１０±０．３２、ＯＶ平均１．０４±０．２７、ＯＳＩ０．７１±０．３６，均为Ｐ＞０．０５）。配戴前后ＭＴＦ截止频率与眼轴长度均无显著相关性（均为Ｐ＞０.０５）。结论　患者配戴角膜塑形镜后初期视觉质量下降，表现为ＭＴＦ截止频率和各对比度下ＯＱＡＳ值下降，ＯＳＩ升高。配戴塑形镜后３个月视觉质量逐渐恢复到配戴前水平。
Abstract:
 Objective To objectively assess changes in optical quality and intraocular scattering in myopic patients aged 8 years t0 16 years after orthokeratology with a double-pass instrument ( optical quality analysis system,OQAS II) . Methods A prospective study. 32 myopic patients (57 eyes) with spherical equivalent ranged from -1. 00 DS to - 5. 75 DS ( - 3. 77 + 1. 78 ) DS and astigmatism ranged from o DC to - 1. 50 DC ( -0. 45 +0. 57) DC in our hospital from April 2013 to October 2013 underwent orthokeratology treatment. The patients were analyzed before orthokeratology and 7 days,l month and 3 months after orthokeratology , the values of MTF cutoff frequency, objective scattering index ( OSI ) . and OQAS values under different contrast ( OVIOO% . OV20% . OVg% , OVaverage) were assessed by OQAS II for a 4 mm pupil. Results The MTF cutoff frequency before orthokeratology and 7 days, I month after orthokeratology were 30. 13 + 11. 45 , 23. 33 + 6. 58 , 22. 52 + 7. 11 , respectively ; OVIOO% before orthokeratology and 7 days, I month after orthokeratology were l. 01 + 0. 29. 0. 81 +0. 21 . 0. 85 + 0. 18. respectively; OV20% before orthokeratology and 7 days, I month after orthokeratology were l. 06 + 0. 33 .0. 87 + 0. 22 , 0. 89 + 0. 20 , respectively ; OVg% before orthokeratology and 7 days,l month after orthokeratology were l. 14 + 0. 37 , 0. 88 + 0. 23 , 0. 92 + 0. 22 , respectively ; OVaverage before orthokeratology and 7 days , I month after orthokeratology were l. 07 + 0. 32 ,0. 85 + 0. 21 .0. 89 + 0. 21 , respectively; OSI before orthokeratology and 7 days, I month after orthokeratology were 0. 84 +0. 85 , 1. 25 + 0. 75 . 1. 26 + 0. 90 , respectively , There were significant differences compared to the pre-treatment ( all P < 0. 01). The MTF cutoff frequency, OVIOO% , OV20% .OVg% .OVaverage , OSI at 3 months after orthokeratology were 30. 59 + 5. 23 . 0. 98 +0. 24 , 1. 04 +0. 27 .1. 10 + 0. 32 . 1. 04 + 0. 27 ,0. 71 + 0. 36 , respectively , there was no statistical difference compared to the pre-treatment ( all P > 0. 05 ) . There was no significant correlation between MTF cutoff frequency and axial length ( all P > 0. 05 ) . Conclusion The optical quality decreases in orthokeratology patients at early period of treatment .MTF cutoff frequency and OQAS values under different contrast decrease . and OSI increase. The optical quality at 3 months after orthokeratology return to the level after orthokeratology.

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备注/Memo

备注/Memo:
 国家自然科学基金资助（编号：８１１００６４６）；天津医科大学校级青年基金资助（编号：２０１３ＫＹＱ１０）
更新日期/Last Update: 2015-04-27