I recall two companies working on this - RightEye and Neuralight: https://techcrunch.com/2018/02/17/righteyes-portable-eye-tra... https://techcrunch.com/2022/05/24/neuralight-aims-to-track-a... Probably there are more by now. As I recall this data is great for essentially saying "you should go get a real test." No one is diagnosing - just saying that a certain, say, eye movement slowness is correlated and you can det…
is early diagnosis useful?
There are some candidates advertised as promising but I'm not sure how much stock I have in this. This isn't my area of expertise but disease modifying therapies for neurodegenerative diseases have been touted as being "around the corner" since I was a first year medical student.