Pain in eye after cataract surgery: When does it get better?

Hi friends has anyone had pain behind the eye 9 to 12 months after the cataract surgery? My husband still going down a dark road fighting the pain in his eyes he’s been to so many physicians no one seems to know what it is they all say his eye and cataracts are fine the surgery went well he had a expensive cataract lens put in which is called a panoptic, he feels the doctor did not place it properly or that is too strong for his eye. He’s been on drop after drop five or seven different drops sometimes they help most of the time they don’t.