I am having small pupil after catract surgery and doctor has not implanted lens in that so is it normal?

Inflammationis: After cataract surgery, the pupil may be larger than average size, smaller than average size, or not changed in size. There are a lot of factors that affect post-operative pupil size. Inflammation in the eye usually causes the pupil to be smaller. All of the above is not worrisome as long as your doctor is reassuring you that your eye is recovering from the cataract extraction acceptably.