Where did the big E come from?.
The paper explains how the big E on the Snellen chart that is used to measure the visual acuity of each eye originated.
| 发表在: | IEEE Engineering in medicine and biology magazine 25, 2 (2006). |
|---|---|
| 主要作者: | |
| 格式: | 文件 |
| 语言: | English |
| 主题: |
The paper explains how the big E on the Snellen chart that is used to measure the visual acuity of each eye originated.
| 发表在: | IEEE Engineering in medicine and biology magazine 25, 2 (2006). |
|---|---|
| 主要作者: | |
| 格式: | 文件 |
| 语言: | English |
| 主题: |