OptiKey is an assistive on-screen keyboard which runs on Windows. It is designed to be used with a low cost eye-tracking device to bring keyboard control, mouse control and speech to people with motor and speech limitations, such as people living with Amyotrophic Lateral Sclerosis (ALS) / Motor Neuron Disease (MND).
OptiKey 是一款运行在 Windows 系统上的屏幕辅助键盘软件。旨在使用以低成本的眼动仪，来帮助患有肌肉、发声障碍的人（ 如肌萎缩性侧索硬化症（ALS）/运动神经元疾病（MND）患者，译注：即「渐冻人」）来控制键盘、鼠标及与人讲话。
OptiKey was written to challenge the outrageously expensive, unreliable and difficult to use AAC (alternative and augmentative communication) products on the market. It is, therefore, fully open-source and free. Forever.
OptiKey 为的是挑战市面上超贵、不可靠、难用的 AAC（替代和辅助沟通）产品，因此 OptiKey 完全开源，永久免费。
It works out of the box once you have your eye-tracking device installed and allows selections to be made using dwell selection, as well as physical buttons and assistive devices. If you do not have an eye tracking device you can use OptiKey with a mouse or your webcam.
其使用方式十分简单，只需要安装了眼动仪，并且允许驻留选取、物理按键选取或者其他辅助设备选取等。如果没有眼动仪，也可以通过鼠标或者摄像头来使用 OptiKey。
OptiKey can be used as an alternative to a physical keyboard, allowing you to type into any application. OptiKey can automatically insert spaces between words and capitalise letters for you to increase your typing rate. You can even type whole words and phrases in a single selection by "swiping" or using "auto-complete".
OptiKey 可以替代外置键盘，可以在任何应用程序中打字。OptiKey 可以在单词之间自动插入空格，和转化大写字母来提升打字速度。也可以通过一次性的 “扫视（swiping）” 或 “自动完成（auto-complete）” 来输入一整个单词或短语。
OptiKey can replace your mouse, allowing you to click, scroll and drag with precision anywhere on screen.
OptiKey 可以取代鼠标，在屏幕上的任何位置精确地点击、滚动和拖动。
To communicate naturally with those around you select the 'Speak' key and OptiKey will convert what you have typed into speech...even if you find it difficult to select keys...
想要与你身边的人自然地说话，选择 “Speak（朗读）” 按键，OptiKey 会把你输入的文字转化为语音。
