i have severe eye pain behind my left eye that usually last 24 to 48 hrs which i end up having to get a torodol or demorol injection and then i am put on a round of predisone because after the pain subsides the double vision comes.i have been going back and forth to vanderbilt hospital for testing(mri,mra,emg and cat scans)they thought maybe it was myasthenia gravis but that was ruled out. They are now sending me to a neuro opthamologist. I have been dealing with this for several years. The double vision may last 1 week or in this case it has been 7 weeks to date. So i was just wondering if anyone else has THS because my neurologist said it is a rare disorder[/enc]