My strabismus has caused discomfort for me also. Since my surgery, the physical discomfort caused by strabismus has been much less. But there have been other problems.

Before surgery, when the tension and spastic movements of my eyes was so uncomfortable, I especially noticed how vision therapy relieved them. The relief only lasted a few hours, though. The vision therapy at home did not provide as much relief as using some of the programs and special equipment available in my sessions with my Optometrist.

Also getting plenty of rest helps.