Posted 4/17/2012 8:15 PM (GMT -7)
Get him an full MRI. It can be fluid, inflammation, migraines. After MRI see a Neurologist, ENT, Rheumy. I suggest teaching hospitals, as you have every kind of doctor you need in one location, plus state of art medical equipment and training.
In the mean time, as I have triple vision myself, tell him to go for the one in the middle. Its always the middle vision that is the real one.