Different headline, but from the same study about the use of three of the four Yamanaka factors, y Yuancheng Lu et al, from the David Sinclair team.
There are other posts here (Rapadmin and Joseph, to name two) about the Yamanaka factors
In 2020, the David Sinclair team was able to regenerate optic nerves in mice, to regain eyesight.
Been praying that development to humans will speed up. My brother lost his eyesight from a pituitary adenoma that affected his optic nerve.