视力自动化检查系统的研制和临床应用

Development and clinical application of automated vision testing system

目的:为快速准确地检查视力,自行设计一台视力自动检查仪,并将其与传统视力表检查方法进行对照,探讨其临床应用的可行性。方法:开发视力自动化检测软件,使用液晶显示器(LCD)显示视标,被检者根据视标开口方向使用无线设备反馈信息,计算机将自动记录和处理被检者的反馈信息,同步显示被检者的视力检测结果,并在检查结束打印检查报告。同时使用传统视力表检查视力,对比两种检查方法的差异。结果:该软件系统的检测结果有极佳的可重复性,同时将该系统和常规视力表进行对比,发现两者视力检查结果无明显差异。结论:该系统可以快速准确地检测视力,可以推广应用于各级医院、学校和体检等机构,尤其适用于群体视力的检查。

AIM：For rapid and exact examination of visual acuity,a computer-assisted automated vision testing system was designed.The examination results were compared with that of traditional visual charts to evaluate the possibility of clinical application of this system.METHODS：The vision testing software was designed and installed in the computer,the visual charts was displayed on the liquid crystal display（LCD）.The directions of optotypes were inputted into computer by patients using wireless keyboard and examination results were displayed on screen and printed.Then the results by using this system were compared to that of traditional visual charts.The difference of the two examination methods was analyzed.RESULTS：This system is rapid and exact.The examination results by using this software can be repeated.The results by using this system have no difference compared to that of traditional visual charts.CONCLUSION：This system can be effectively used in clinic and also in school physical examination,especially in large scale visual acuity testing demands.