If you did not see an ophthalmologist for the complete eye exam, you need to do so and you also need a visual field test to examine your peripheral (side) vision. There are many causes of decreased side vision. If you have persistent double vision, which cannot be relieved with some prism in your glasses, then a consultation with a strabismus specialist is in order, to determine if you need eye muscle surgery.
I do not recommend the any surgery, double vision is a nightmare in which I have lived with it for 8 years ( Post strabismus surgery )... For me prisms didn't help, I do and have done patching my good eye due to good eye is strained.... Blackening out a lens in a glasses is easier than wearing the pirate patch you find at your drug stores, it is possible to drive, work, live as normal as you can with one eye patched.... Wish you the best of luck.