视力表应用常见误解之分析

视力表是眼科临床和视觉科学研究领域的重要检查工具，现针对临床和研究中比较容易被误解的视标增率、视力记录和部分研究论文中出现的视力统计等问题进行阐述，并以此解读视力表的设计核心内容，这将有利于对视力表的科学理解，避免应用上的失误，使视力表的使用更加科学和规范，如此可获得准确的视力记录和统计结果，使之更好科学应用于视力普查、眼科临床和科研等。

The analysis of common misunderstandings of recognition and application of visual acuity chart

Visual acuity chart is an important tool in ophthalmic clinic and vision research. This paper aims to expound the misunderstanding of vision records and the vision statistical issues in some of the research papers， and to further interpret the core design of visual acuity chart. This would be helpful to make the use of visual acuity chart more scientific and standard， and to get more accurate visual records and statistical results， so as to make the visual acuity chart to be better served in the vision screen， ophthalmic clinic， and vision research.