Anisocoria

Anisocoria
A large difference in the size of the pupils following application of tropicamide in the right eye only.
Pronunciation	/ænˌaɪsəˈkɔːri.ə, ˌænaɪ-/[1]
Specialty	Ophthalmology

Anisocoria is a condition characterized by an unequal size of the eyes' pupils. Affecting up to 20% of the population, anisocoria is often entirely harmless, but can be a sign of more serious medical problems.