How do you manage bothersome diplopia due to metastatic disease affecting occipital lobe?

If the patient has a brain lesion causing monocular diplopia (that's what I would think if it's "refractory" to patching an eye), then this would seem to be a true palinopsia, and the tumor would be affecting areas outside the primary visual cortex. This will sometimes go away with time/CNS adaptati...

An isolated occipital lobe lesion should not result in strabismic diplopia (relating to misalignment of the eyes) unless a resulting loss of peripheral field reduces the drive for fusion and decompensates an underlying strabismus.

The fact that it does not go away with monocular occlusion suggests i...