On September 10, Julius Sweetland, 32, released a two-minute video demo of his new eye-tracking program OptiKey. Although the demo marked the culmination of almost four years of solitary effort, coding late into the night and squeezing in some morning programming before heading to his day job, it reached a global audience in just a few hours.
OptiKey is a program that enables individuals with motor neuron diseases like ALS to type, click, and browse their computers using only the movements of their eyes. Although it requires a PC and an eye-tracking camera to work, the software itself is free to use—undercutting commercial systems by thousands of dollars.
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