I hazard to guess, but I suspect that it is an issue of IOL placement. Somehow it is irritating the eye.
I already went to him(surgean) for a chek-up/routine about a month ago and he said something like: "everything that has to do with the surgery/len is has it should be. it appears to be something outside the eye and not inside the eye..."
I dont give much credit to the second part of what he said, but if he says that everything is ok with the len (he saw it twice 1 day after the other) well...So a regular ophtalmologist should notice the problem right? I'm thinking in getting in touch not with my regular one, but with a doctour who has a great name among the people. byt the way, let me explain this pain. It happens when i leave the eyedrops for about 2 days...it start to hurt when i blink hard..or touch with a finger...and it gets worst with the time (hours) until some point.... And it only get better if i use eyedrops again, Specially ELIPA.