3 years ago my left pupil dilated and right became small have done MRI, test, and have found nothing dr has said its aide syndrome but know my left pupil is still dilate but starts pulsing (changing size big, small, big, small very rapidly and i get dissy and my vision goes blurry from that eye and it also hurts doctor says it my nerves but i cant stand this anymore i also cant drive because is my pupil starts pulsing i need to go to the side of the road and wait till it stops and in the night all i see is like fireworks bursting instead of cars or anything with lights. any idea of what could be causing this?