So they've "solvedcd" a problem that does not really exist?
I'd suggest the reason most people who don't get cataracts fixed do so because of a lack of money, including (IIRC) the people in the US IOW sh**ty healthcare, not technology.
Now if they'd regenerated someone's whole eyeball IE literally grew it straight off the optic nerve, that would have been seriously impressive.
Underwhelmed. Sounds like salami science to me.