do you wear or need to wear glasses? when you check the pupils, have you looked in a dimly lit room? have you had any eye infections or inflammatory conditions? are you light sensitive?
there are several reasons for people having smaller pupils than usual. One is a normal aging phenomenon. Second is a pupil that has scarred down on to the lens, and this can happen in cases of chronic anterior chamber inflammation, but is not common with blepharitis. Third is a condition known as pseudoexfoliation syndrome. There are a couple of other things. You also should know that the pupil shrinks as you focus up on something close (accomodation) so theoretically, if you are doing near work all day, your pupil can become small. Of course, given the limiations of this forum, I wont be able to sort this out, but rest assurred most causes are benign and have no consequences. You should get the eyes examined as some things such as pseudoexfoliation syndrome can be associated with glaucoma or other conditions. I wish you well, Dr. Stevens