For me, I ve never had surgery which is why I never had eye movement problems as you describe. Surgery involves shortening (cutting) the muscles that rotate th

For me, I ve never had surgery which is why I never had eye movement problems as you describe. Surgery involves shortening (cutting) the muscles that rotate the eye, which requires a period of readjustment. Reading text in books requires quick eye jumps (saccades). Now, with smooth scrolling, we add to that the need to do smooth pursuit movements , trying to follow the scrolling text. For me, the biggest problem is figuring out where to continue reading after scrolling when the smooth pursuit ends (probably because smooth pursuit has higher margin of error). I think it would really be helpful is there was a line indicating the previous page boundary on screen when changing pages.