Avatar and My Strabismus

I recently saw Avatar in 3-D. Or should I say everyone else in the theater did: because I have suffered from strabismus (wandering eye) my whole life, I can't see in 3-D. My eyes look fine, due to 3 eye operations as a kid and over a decade of wearing glasses, but I see primarily out of my right eye. I have excellent peripheral vision in both eyes, I just can't do the 3-D thing. I had to wear the glasses just to see the movie, but the colors appeared rather muted. Add to that the ho-hum story line, and it being way too long, and I'd give the movie a C.