Is it possible for back pain to affect your vision? If so what could be a solution?

No. There is no relationship between the two. However there are common causes. For example diabetes could cause back pain, and cause retinopathy and cataract. Refer to your dr.
Not directly. I would get checked by an eye specialist, and if your eyes are ok you could see a neurologist. If your vision is getting blurry or seeing spots on one side it could be something more serious and you should see your doctor right away.