Hi Martin,

I don't have the same issue but I recall a recent thread (Laupau) that mentioned a new book ("Ghost in my brain", I think) in which the writer finally recovered from PCS after 8 years using logic puzzles and specialised prism glasses. I think the glasses may be something you want to look into, though I admit I'm not really sure.

Hopefully someone else more knowledgeable will chime in. If I'm off on this, sorry.