Cataract surgery 1wk post-op check up yesterday. both eyes dilated. 24 hrs later, one eye still somewhat dilated. normal or problem?

Likely just normal: It depends on the drops and number used. It's possible that you are just a slow metabolizer of the respective medication/drops utilized. Consider touching base with your opthalmologist just to make sure you have a good plan of action.

Can be normal: give another day and if not resolved check with your eye doctor.

Dilation p CS normal: Dilation after Cataract 1wk post op check is normal. It should return to normal within 3-4 days if normal dilating drops were given. If you are on atropine, it will stay dilated sometimes for 5-7 days.