OK. So it's .0625 now. If it doubles, you've made 100%. So that is .125 cents.
Multiply that by 10, and you've got 1,000%.
This company, in a few years, will likely produce much more than a 1000% return, given the potential revenues and the effect that should have on its market capitalization. Many, including myself, have invested more than 9,000 at various price points. The price is quite low now, and everyone has to start somewhere.
If you have close to 100,000 invested when it goes up 10 times, and the market cap is 1.6 billion, imagine how much you'll have if the market cap hits 16 billion, or 26 billion or more, and a lot more could ultimately be the case, but you might have to hold a long time, assuming they are successful and their treatments just for the retina, become widely available.
Additionally, we all know they have other products that could be successful. I don't recommend investing anywhere. You of course could lose all of your money if the science and medicine fails. Obviously, I've bet that it won't fail. But that's my opinion and you have to make-up your own mind, after you do your own research.
Also, you should take into account the regulatory risk. There are people who don't want anything from an embryonic cell to succeed, as it would validate the science. That's a good proportion of the US, and a surprising proportion of interest groups in the EU. Asia too has some odd jurisdictions where embryonic stem cells are not the care technology either. So, nothing is a given.