My husband is experiencing double vision spells. In these spells, he will have double vision in both eyes. However, if he covers one eye up, he can see like he is looking through a pin hole. This will occur about 8-10 times a day. He also has started having short term memory loss. He will forget someone telling him they are going to the store or something like that. It is starting to scare me. Could it be mini strokes. He has had MRIs and they didn't show anything in his brain. The last time we went to the neurologist, he wanted to run a CT w/ contrast to check his vertebral arteries for any malfunctions. Could this be it? They are scheduling the CT scan. We have been going through this for at least 8 yrs and it is getting worse by the day. I don't know if we can take it much longer. Any suggestions? Please advise!!!