"Repetition"

My mother visited the Machin Eye unit for a pre-op appointment last Wednesday and a consent appt today, the last part of which seemed to be a repeat of the pre-op appointment. Was the appointment last Wednesday really necessary? There seems to be quite a bit of duplication in effort in the unit (e.g. sight tests every visit, although my mother's problem is with an eyelid, not sight related), though i appreciate that this may be for reasons unknown to patients. However, everyone was polite and friendly and everything was explained thoroughly. So no complaints, just queries.