Hirano Mariko, Hutchings Natalie, Simpson Trefford, Dalton Kristine
*BSc, PhD, MCOptom †Dip Optom, PhD ‡OD, PhD, FAAO Vision & Motor Performance Lab, School of Optometry & Vision Science, University of Waterloo, Waterloo, Ontario, Canada (all authors).
Optom Vis Sci. 2017 May;94(5):616-625. doi: 10.1097/OPX.0000000000001065.
In many sports, athletes rely on visual information from the environment to perform. Some literature suggests athletes have superior visual abilities to non-athletes, particularly on tasks representative of the visual demands of their sport, such as dynamic acuity, eye movement accuracy and speed, and peripheral vision. Other literature suggests there is no difference between athletes and non-athletes, at least when standard clinical assessments are employed. A limitation of the literature is that almost none of the research has been conducted with standardized, validated tools. This is partly caused by a lack of readily available tools to measure tasks representative of the visual demands of sport, and available tests have typically not been validated against current clinical standards. The purpose of this study is to examine the validity and repeatability of a novel visual acuity system (moV&; V&MP Vision Suite) recently developed in the Vision & Motor Performance Lab (V&MP). moV& permits the measurement of many visual function parameters including dynamic visual acuity with predictable, random, and jittering target motion.
Twenty-five participants attended two study visits, separated by a minimum of 2 weeks. At each visit, static and dynamic visual acuity was measured using Snellen, ETDRS, and moV& charts. Static visual acuities were compared to determine the validity of moV&, and both static and dynamic visual acuities were compared between visits to determine the test-retest repeatability.
moV& static visual acuities are clinically similar to visual acuities measured with the ETDRS chart (moV&, -0.09 ± 0.13; ETDRS, -0.03 ± 0.11, concordance correlation coefficient 0.726). Additionally, all static, dynamic, and jitter visual acuities demonstrate good test-retest repeatability (Lin's concordance correlation coefficient range 0.451-0.953).
moV& provides good clinical measures of static visual acuity that are comparable to both Snellen and ETDRS measures. Dynamic visual acuity measures demonstrate good test-retest repeatability.
在许多运动项目中，运动员依靠来自环境的视觉信息来完成动作。一些文献表明，运动员比非运动员具有更出色的视觉能力，尤其是在代表其运动视觉需求的任务上，如动态视力、眼球运动的准确性和速度以及周边视觉。其他文献则表明，运动员和非运动员之间没有差异，至少在采用标准临床评估时是这样。该文献的一个局限性在于，几乎没有研究是使用标准化、经过验证的工具进行的。部分原因是缺乏现成的工具来测量代表运动视觉需求的任务，而且现有的测试通常未根据当前临床标准进行验证。本研究的目的是检验视觉与运动表现实验室（V&MP）最近开发的一种新型视力系统（moV&；V&MP视觉套件）的有效性和可重复性。moV&允许测量许多视觉功能参数，包括具有可预测、随机和抖动目标运动的动态视力。
25名参与者参加了两次研究访视，间隔至少2周。每次访视时，使用斯内伦视力表、ETDRS视力表和moV&视力表测量静态和动态视力。比较静态视力以确定moV&的有效性，并在访视之间比较静态和动态视力以确定重测可重复性。
moV&的静态视力在临床上与用ETDRS视力表测量的视力相似（moV&，-0.09±0.13；ETDRS，-0.03±0.11，一致性相关系数0.726）。此外，所有静态、动态和抖动视力均显示出良好的重测可重复性（林氏一致性相关系数范围为0.451 - 0.953）。
moV&提供了与斯内伦和ETDRS测量相当的良好静态视力临床测量值。动态视力测量显示出良好的重测可重复性。
