Hi Denise: I had radiation on my eye muscles last June. The treatments themselves are not painful. I had ten in ten days, each lasting about about ten minutes. The swelling seemed to diminish for a few months. I saw the radiologist last week and he can see increasde protrusion, which I knew. Could be the disease acting up again. However, I don’t see how it can hurt for you to have them, especially considering your condition. The first appt. takes awhile because they have to make the mask and take all the measurements. Good luck and keep the faith.