In the Japanese study, they used these cells: https://en.wikipedia.org/wiki/Induced_pluripotent_stem_cell https://en.wikipedia.org/wiki/Induced_pluripotent_stem

In the Japanese study, they used these cells: https://en.wikipedia.org/wiki/Induced_pluripotent_stem_cell https://en.wikipedia.org/wiki/Induced_pluripotent_stem_cell Which are very expensive and complicated to produce. They injected the cells into one eye, monitored the patient carefully, and decided to halt the experiment and research further based on some genetic findings in the injected cells. THAT'S how you do "you don't really know whether it will work until you try it" on humans. The clinic in Florida used a different type of cell: https://en.wikipedia.org/wiki/Mesenchymal_stem_cell https://en.wikipedia.org/wiki/Mesenchymal_stem_cell These are far easier to obtain (centrifuge and wash liposuctioned fat -- voila!), but have more limited uses. They can become muscle, fat, bone, cartilage, and blood cells, among a few other things, and they help repair injury -- awesome stuff! They CANNOT become eye cells. We already know that. Do not inject them into your eyes. You will go blind. Those stem cells do not belong in eyes. What the clinic did was tremendously irresponsible. This is not a matter of "someone has to be the first" There's just no evidence at all that this would work.