No specific insight (inadvertent pun there) but are you thinking of relocating? You could probably connect with the Lions Club International since one of their missions is enhancing eye care around the world and they might know more about current needs in El Salvador...

https://www.lionsclubs.org/en

I was wondering the same thing for footcare, podiatrist with 20+ plus years wound care experience. If diabetes is rampant eye and feet will be busy!

I’m interested in the ortho environment as well