Madagascar ficus
I am not a botanist, and cannot relate the differences from one ficus to the next, but there are over 40 species of ficus native to Madagascar (I think, maybe its only 30, maybe 50) although I do not believe the exact ones most common in the U.S. (such as benjamini , forgive me but I am doing this from memory) are in that 40 (or 30 or 50).
My impression of the ficus-eye thing is that it is an old wive's tale, as where eye problems (or symptoms) are common, and so are ficus, and someone with a keyboard decided it was cause-and-effect years ago. We have used ficus for many years, as well as non-ficus. Never seen a variation in eye problems where ficus could even be remotely indicated as the causitive agent.
Good luck.