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Significant Improvement in Dynamic Visual Acuity after Cataract Surgery: A Promising Potential Parameter for Functional Vision
Ao, Mingxin1,2; Li, Xuemin1,2; Huang, Chen3; Hou, Zhiqiang1,2; Qiu, Weiqiang1,2; Wang, Wei1,2
刊名PLOS ONE
2014-12-26
DOI10.1371/journal.pone.0115812
9期:12
收录类别SCI
文章类型Article
WOS标题词Science & Technology
类目[WOS]Multidisciplinary Sciences
研究领域[WOS]Science & Technology - Other Topics
关键词[WOS]CONTRAST SENSITIVITY ; MOTION PERCEPTION ; PERFORMANCE ; SYSTEM ; AGE ; ORGANIZATION ; PATHWAYS ; GLAUCOMA ; DRIVERS
英文摘要

Purpose: Dynamic visual acuity (DVA) is a relatively independent parameter for evaluating the ability to distinguish details of a moving target. The present study has been designed to discuss the extent to which age-related cataract impacts DVA in elderly individuals and to determine whether it could be restored after bilateral phacoemulsification combined with intraocular lens implantation surgery.

Methods: Twenty-six elderly cataract patients scheduled for binocular cataract surgery and 30 elderly volunteers without cataract were enrolled in the study. DVA at 15, 30, 60 and 90 degree per second (dps) was assessed, and velocity-dependent visual acuity decreases between consecutive speed levels were calculated.

Results: Compared with the control group, the patient group exhibited significantly worse DVA performance at all speed levels (p<0.001), and the decreases in velocity-dependent visual acuity were more serious in the patient group at the intervals of 0-15 dps (p<0.001), 15-30 dps (p=0.007) and 30-60 dps (p=0.008). Postoperatively, DVA performance at every speed level in the patient group clearly improved (p<0.001) and recovered to levels compatible to the control group. The decrease in visual acuity with increasing speed was less pronounced than during the preoperative phase (p(0-15 dps)=0.001, p(15-30) (dps) <0.001 and p(30-60) (dps)=0.001) and became similar to that of the control group. The postoperative visual benefit regarding DVA was more pronounced than the improvement in static visual acuity (p(15 dps)=0.001 and p<0.001 at 30 dps, 60 dps and 90 dps).

Conclusions: The impact of age-related cataract on DVA was more severe than its effects on static visual acuity. After cataract surgery, not only static vision of the

语种英语
WOS记录号WOS:000347239900092
资助机构Academic Award for Excellent Doctorial Candidates of the Ministry of Education of China
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被引频次:1[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.bjmu.edu.cn/handle/400002259/56298
专题北京大学第三临床医学院_眼科
作者单位1.Peking Univ, Hosp 3, Dept Ophthalmol, Beijing 100871, Peoples R China
2.Minist Educ, Key Lab Vis Loss & Restorat, Beijing, Peoples R China
3.Peking Univ, Hosp 3, Med Res Ctr, Beijing 100871, Peoples R China
推荐引用方式
GB/T 7714
Ao, Mingxin,Li, Xuemin,Huang, Chen,et al. Significant Improvement in Dynamic Visual Acuity after Cataract Surgery: A Promising Potential Parameter for Functional Vision[J]. PLOS ONE,2014,9(12).
APA Ao, Mingxin,Li, Xuemin,Huang, Chen,Hou, Zhiqiang,Qiu, Weiqiang,&Wang, Wei.(2014).Significant Improvement in Dynamic Visual Acuity after Cataract Surgery: A Promising Potential Parameter for Functional Vision.PLOS ONE,9(12).
MLA Ao, Mingxin,et al."Significant Improvement in Dynamic Visual Acuity after Cataract Surgery: A Promising Potential Parameter for Functional Vision".PLOS ONE 9.12(2014).
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