Vision Test

Vision Test插件简介

Vision Test插件描述

Vision Test is a simple  easytouse test f your eyes. It wks based on the principle of how well you can see objects at 6 metes  20 feet away.

The chart has an E character, which you need to decide the direction of the character only. Simply start the test  st 1.6 meters  5 feet away from the monit. When you see a character on the screen, only decide the direction  wait f the answer to appear at the bottom of the screen. The answer is in green col  also a big font, so you can see it without any problems from distance.

In general, you need to crectly answer at least 50% of the characters at each level,  if you cannot, please stop at that level  recd your sce. You can adjust the test speed from the UI; the default time to read each character is 7 seconds.

Note #1: this test is NOT a clinical test f your eyes  has NO diagnostic values at all. It is just a very basic, simple  easy test f your visions clarity  the result is good f your recdings only. You should NOT rely on the result of this test at all.

Note #2: if you have a feature request  found a bug to rept please fill the bug rept fm in the addons homepage (https://mybrowseraddon.com/visiontest.html).
                                

Vision Test插件离线安装方法

1.首先用户点击谷歌浏览器右上角的自定义及控制按钮，在下拉框中选择设置。

2.在打开的谷歌浏览器的扩展管理器最左侧选择扩展程序或直接输入：chrome://extensions/

3.找到自己已经下载好的Chrome离线安装文件xxx.crx，然后将其从资源管理器中拖动到Chrome的扩展管理界面中，这时候用户会发现在扩展管理器的中央部分中会多出一个”拖动以安装“的插件按钮。

4.下载 Vision TestChrome插件v0.1.2版本到本地。

5.勾选开发者模式，点击加载已解压的扩展程序，将文件夹选择即可安装插件。

注意：最新版本的chrome浏览器直接拖放安装时会出现“程序包无效CRX-HEADER-INVALID”的报错信息，参照这篇文章即可解决