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Synonym(s) - Pupillary Asymmetry - Pupillary Inequality

Definition: Unequal size of the two PUPILS.

Additional information for professionals: It may be physiological (up to 2mm difference) or pathological due to damage to the sympathetic and parasympathetic pathways of the pupil. As in: oculomotor nerve paralysis (III), PUPILLOTONIA, CLAUDE BERNARD HORNER SYNDROME, an IRIS disorder, or simply due to myotic or myolytic eye drops.

Hierarchical classification:

  • Diseases of the nervous system
  • Neurological manifestations
  • Pupil disorders
  • Anisocoria


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