You will need to do your own research. Use the archives and search feature. Discussed many times here.
JCHMD
What are the other problems that they can cause? And could I get this done in only one eye, without taking antibiotics (I'm allergic to them and most other med's as well).
Implants are not rejected, the materials are almost totally inert. They can cause other problems that can cause them to have to be removed or replaced but rejection is not one of them
JCHMD
Mmmmm I had a feeling about that? Have you ever heard of anyone's body rejecting an implant? This is what I fear.
No you need an implant (IOL) put in the eye when the cataract is removed.
JCHMD