[Jack]

You may have to adjust the rear eyepiece on your riflescopes, but that's just because your eyesight (with the glasses) is now different than it was.
Now, as to binoculars and spotting scopes, you may run into some problems. Because of the glasses, your eye is now held farther from the rear lens(ocular lens) or eyepiece than before. This may cause you to be unable to see the full field of view.
As far as clarity, you'll likely run into the same thing as with scopes- readjust the focus and you'll get good clarity.
It IS possible to get binoculars that will give the full field of view when you look thru them with glasses on. Some binoculars (most) have roll down or retractable eyecups that will let you get your glasses closer to the ocular lens to help give you a larger field of view. That helps, but even with retractable eyecups, a lotta binos won't show the full field. There are some that do- Leica, for example.
If you can find a bino with an ocular distance (distance from rear lens to eye) of 21mm or better, you'll get full field of view with your glasses on.