Get another opinion. You need get some answers other than just wait. I am not that versed in the retina aspects of what you have going on or have enough information. But if it is the retina, there should be a diagnosis of what it is and what is going on and what the percentage chances are that you have for recovery.
Sounds like you have a retinal problem. Inserting the lens upside down would only make you a little over minus. You also said you had a YAG which does not have anything to do with the retina but clears up posterior capsule opacification. If you had a YAG it will also make the lens harder to remove which it would be at one year out anyway. I would work with you retinal vitreous doctor and ask him more questions on what they are specifically treating and why did your vision deteriorate.
most likely not inserted incorrectly, but i am not a surgeon. maybe one of them will post...