Two thoughts initially come to mind. First, is this "double vision" truly 2 images either next to or on top of each other?? And is this present with both eyes open and goes away when one is closed?? This definitely needs to be clarified for you prior to any more surgery. "Ghosting" of images is often a monocular phenomenon, often associated with multifocal IOLs like Restor, and can be researched in the archives of this website.
Treating the dry eye and blepharitis is critical for optimizing vision after cataract surgery, regardless of the type of IOL you have. Be very vigilent about the regimen prescribed, and coupled with time, it does work.
Use the search function. Your problems are common.
I had the Tecnis multifocal lenses inserted in April and have a major halo problem. In high contrast situations it is obvious that the out of focus light is interfering with my ability to see clearly. Before surgery I had sharp vision with glasses, now it is hard to see to cut my fingernails even though I can focus at that distance. I like to do carpentry and woodworking, but it is difficult to see things sharply enough to work safely with tools. I am seriously considering having these removed and going with a single vision lens. That will require reading glasses, but it it eliminates the halos and give me sharp vision it will be worth it..
If you have been following this forum, you would know that the lenses that give the least trouble are the monofocal ones. It is rare for someone to post complaints about them (except when it is bad surgery). And your insurance will pay for it.
Further to the above. Two of my siblings have monofocal lens implants. They are overjoyed with the results. My brother says he does not need glasses to read normal size type. That surprised me. I haven't asked my sister if she can read without glasses.
Do you know if monofocal lens implants also have light/glare and halo problems? I am reconsidering my Restor and Crystalens (I have one of each) as they may have given me lots more sight but way too many problems and discomfort in getting them to actully function for me. Lots of eye confusion and disorientation. And I still need glasses 85% of the time, only time I am OK is when I am in a small, perfectly lighted room.