Definition of Saccade

Saccade: Abrupt rapid small movements of both eyes, such as when the eyes scan a line of print. The saccades can be divided into two distinct groups: the major saccades that are easily observed with the naked eye and the minor saccades that are virtually unobservable without special instrumentation.

The word saccade is borrowed from the French. It is derived from the Old French sachier meaning to shake. In horse riding, a saccade is the bruque shaking given to the reins of a horse as a signal to the horse. Also called saccadic movement.


Last Editorial Review: 6/14/2012

Search MedTerms:


Back to MedTerms online medical dictionary A-Z List
Pill Identifier Tool

Need help identifying pills and medications?
Use the pill finder tool on RxList.