Macular Degeneration With support from Foundation Fighting Blindness, and private donations to the UC Davis Eye Center, the team conducted a pilot clinical trial on the feasibility and safety of an intravitreal autologous bone marrow stem cell therapy to treat people with irreversible vision loss from retinal degenerative conditions and retinal vascular disorders (dry age-related macular degeneration, retinitis pigmentosa, retinal vein occlusion, hereditary maculopathy or diabetic retinopathy). Two of the patients had significantly improved vision, as the team has recently published.