The eyes are the second of the five officers, read as the Supervisor Officer, jian cha guan, or the officer of inspection, and the tradition treats them as the single clearest window onto a person's inner spirit and intelligence among all the features the whole system reads. That trust follows a fairly intuitive logic, that the eyes reveal more of a person's genuine inner state than a feature like the nose or chin, whose shape is comparatively fixed and expressionless, could ever convey, and mian xiang builds a specific reading vocabulary around that intuition rather than leaving it as a vague impression. A practitioner looks for eyes that are bright, well defined and calm, with the white showing evenly around a dark, settled iris, read as a sign of clear thinking and personal integrity.
Eyes read as shifting, showing an overly exposed white, or dull are read under this officer as a caution about untrustworthiness or poor judgment, a harsher class of reading than most of the twelve palaces apply to their own domains, which more often read a weak feature as simple misfortune rather than as a character flaw. The Supervisor Officer's comparatively moral tone, judging character rather than only fortune, marks the eyes as carrying a different kind of interpretive weight than most of the system's other readings.