Are you supposed to have a small pupil (unequal to the unaffected eye) after iridotomy and, if so, for how long?

Frequently: Iridotomy is done to protect your eye from an acute attack of glaucoma due to narrow angles (the space between the edge of the iris and the cornea). Usually a laser is applied to the iris to create a hole which by passes the normal fluid pathway preventing the problem. Your surgeon might have put into your eye a pupillary constrictor to aid in this and this makes the pupil smaller on that side.

Depends on meds used: If Pilocarpine was used prior to the iridotomy, then this can last up to one day. If longer than 1 day, you should have the doctor who performed the iridotomy examine you.