Pain behind right eye for about a week, comes and goes and the pain is like a prodding ache that only lasts a few seconds at a time. I have also had double vision for over a year and decreased vision I think this was due to strabismus surgery last ye?

Eye surgery. Have you mentioned these pains to your ophthalmologist? Such fleeting pains are often due to irritability of a nerve or muscle. The symptom may be related to your prior eye surgery. Your ophthalmologist can best answer any question about these pains.