https://techcrunch.com/2021/10/01/how-four-person-startup-luminopia-is-using-tv-to-treat-lazy-eye/

If you’re diagnosed with lazy eye – otherwise known as amblyopia – as a child, there are only a few options at your disposal. You can wear an eye patch, you can take eye drops, or you can wear corrective lenses. Or, in the future pending FDA clearance, you could watch TV. 

That’s the central idea behind Luminopia, a four-person startup headed by Scott Xiao and Dean Travers. Xiao and Travers started Luminopia six years ago as undergrads at Harvard University, and first heard about the condition from a classmate who had struggled with amblyopia as a child. Lazy eye is the most common childhood form of vision loss, and affects about 3 out of every 100 kids.