A team at the National Eye Institute (NEI) have been bioprinting cells in their study of degenerative retinal diseases such as age-related macular degeneration (AMD).

The hope is that this particular technique will theoretically provide an unlimited supply of patient-derived tissues to investigate these diseases.

https://www.nei.nih.gov/about/news-and-events/news/nih-researchers-use-3d-bioprinting-create-eye-tissue
https://www.youtube.com/watch?v=SPTkgoR2DPM