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Bailey wrote: > > Does anyone know whether colour vision problems can be associated with > Parkinson's itself or if it is possibly caused by the drugs alone. > I've not had much luck finding out. Yep, here are two library references; Neurology 1995;45:386-687 and Brain 1995;118:771-778. The gist is that PWP lose some color discrimination, often before onset of movement symptoms, so it is an early-warning diagnostic tool. I'll send my reviews (off-list) if you want. Also, a couple of years ago in a discussion on this forum, several PWP reported that wearing blue glasses seemed to help their freezing and other walking problems. Cheers, Joe -- J. R. Bruman (818) 789-3694 3527 Cody Road Sherman Oaks, CA 91403-5013