Hi! Cheer up. Stop thinking about MS for the time being. Have confidence on your doctor, he's prescribing the right solutions to your problems. Now let's wait for your urologist's opinion. As far as yur eye problem is concerned, I don't think it's too serious but only a person examining you can say best. With regard to your question, MRI is pretty accurate in diagnosing MS, but just like any other investigation, it will miss out some very early cases although the chance is pretty small: so be assured and enjoy life!!
Dr. Souvik Adhikari, MBBS, MD (Resident)