Sorry to hear about your problem and that the doctors haven't been able to give you an answer.
Several other people on this forum or on the community eye forum (on the left side of the Medhelp forums page) have also had bilateral monocular diplopia with no reason found. Even the specialists seem to be at a loss to explain it.
Hope you get an answer someday. Please let us know if you do!
Nancy T.
The fact that it is intermittant - almost certainly eliminated any INTRA-ocular cause such as anything to do with implant, retina, etc. Now this cleary then implicates the cornea as the probable cause and again since it improves then worsens in this vicious cylce, it's probably related to the surface - eg tear film, epithelium, etc. Would concentrate on rehabilitating the tear film and ocular surface including any lid margin disease. Restasis, fish and flax oil, punctum plugs, preservative free tears, and glasses that seal around the edges to reduce tear film evaporation and glare. Just some thoughts.
MJK MD