2 years ago I suffered a severe tbi. And some l of the complications are accmodative spasms, blepharospasm, and hemifacial spams. None of which I had before, and after 2 years of vision therapy there all considered permanent. I've been prescribed botox and atropine. The botox doesn't really help. My question is, why wouldn't it show up on MRI'S or anything else when every doctor knows and can see it happening to me. Sometimes the accmodative spasms last over 5 hours. Blepharospasm lasting over 3 hours.