What term is used for unequal pupil size?

The term for unequal pupil size is anisocoria. This condition can occur for various reasons, including physiological variations or as a result of medical conditions affecting the nervous system, eye injuries, or other underlying health issues. In a clinical context, recognizing anisocoria is important as it can indicate significant health concerns that may require further examination or intervention.

Acuity refers specifically to the sharpness or clarity of vision, typically measured through eye charts and tests. Asthenopia describes eye strain or fatigue, often from prolonged use of digital devices or focusing on near tasks. Heterochromia denotes a condition where an individual has two differently colored eyes or has variations in color within the same eye, and it does not relate to pupil size. Thus, anisocoria is the precise term used to describe the situation where the pupils are unequal in size, distinguishing it from these other concepts.