Had CK in March, and developed vision problems in May. At first, I had "stuff" floating in my vision. Thought maybe I had a detached retina and went to opthalmologist, who said it was neurological. Got referred to neurologist, and we decided I should switch blood pressure meds. At the same time, I noticed subtle double vision, similar to what you describe. Over the next couple months, I developed more pressing symptoms with my balance, and I stopped worrying about my vision. Gradually, I developed the "shaky camera" type vision related to nystagmus (abnormal eye movements). This kind of problem is common in folks with significant balance issues. My eyes cross much more easily than they used to, and are more difficult to uncross. None of this vision stuff really causes me any functional problems, and I have bigger fish to fry as far as my health goes. Docs say vision will clear up as balance improves. I'm waiting to get glasses changed for another 6 months or so, and this time I'll go to a neuro-opthalmologist. A neuro-opthalmologist, or folks at a vestibular clinic will maybe have the best answers about your problems.