Scientists managed to grow retinal cells that fuse with natural ones.

This is an insanely important study - they learned how to grow a retina from stem cells plus or minus ten years ago. However, until that time, scientists had problems with its implantation in specific people and the ability to turn from dummies into really working mechanisms. The day before yesterday, a study was published where scientists reported on the successful connection of the grown cells with all the inhabitants of the eyes. This is great news for people with some types of blindness.