Mine occurred after surgery as well, but so did a bad fall I took, so I can't be 100% sure it was the cause. One neuro-opthamologist I saw thought it might be cause by the fact that as a child, my left eye did not coordinate with my right, so over time I unconsciously and unknowingly blocked it out and just used my right eye. Signs of doing that were that I always titled my head so that my right eye was forward. Also, I had trouble crossing the midline when would write, and I was probably dyslexic. Anyway, when I had my cataracts removed and replaced with Vivity (trifocal) lenses, somehow my left eye awoke and, being weaker, caused my diplopia. While that is certainly possible, I don't think that is the cause or the only cause because I only get diplopia when I turn my head to the left or right. Now I have to use prism glasses to help minimize the problem. While at Mayo, after I told my neurosurgeon about this problem, he ordered a CT angiogram out of concern that I could have Bow Hunters Syndrome. I have read the results of that test but am not qualified enough to interpret it. Another possibility is that I have some other problem causing restriction of blood flow and oxygen to my brain when I turn my head to the left or right. Anyway, now we are in active pursuit of such a possibility, which is not directly related to the proposed laminectomy and fusion Dr. Flanigan plans to do on my C4-5, 5-6, and maybe C7-T1.

I guess my point is that just because your diplopia occurred right after your cataract surgery doesn't mean that surgery caused it. Just food for thought. Hope it is helpful