首先介绍了与视力测量相关的背景知识，接着介绍了测量原理和仪器实现的功能，然后详细说明了光路，硬件系统和软件系统的设计。

This essay introduces the procedure in detail, including the background information on optometry, measure principle, real function, and the design of optical route, hardware and software.

youdao

首先介绍了与视力测量相关的背景知识，接着介绍了测量原理和仪器实现的功能，然后详细说明了光路，硬件系统和软件系统的设计。

This essay introduces the procedure in detail, including the background information on optometry, measure principle, real function, and the design of optical route, hardware and software.

youdao