Optics and optical instruments. visual acuity testing. method of correlating optotypes.
光学和光学仪器。视觉敏锐度测试。相关的验光字体法。
The size, the performance and the duration times of the optotypes are controlled by the computer.
视标的大小、显示程序和持续时间由计算机控制。
The size, the performance and the duration times of the optotypes are controlled by the computer.
视标的大小、显示程序和持续时间由计算机控制。
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