in mice
"The authors found that OSK expression enhanced axon regrowth and cell survival in human neurons in vitro."
Granted, that's not actually restoring sight to an in vivo human patient just yet, but neither is it "in mice".
I've heard the claim when calorie limiting applied to wild mice, they ... just die - they already have limited calories.
But just that leap might be a decent lesson.
Maybe because I included (in mice) in the title, it didn't get upvoted as much as this post.