Objective: Distance between the medial and lateral canthi is more than 2 SD above the mean for age
Subjective: Apparently increased length of the palpebral fissures
Measurement techniques and norms are as specified in Hall et al. [2007] and Farkas [1994]. The term "wide palpebral fissure" is discouraged because this term is vague with respect to which dimension (vertical vs. horizontal) it refers to, coupled with the popular definition of "wide-eyed," which refers to palpebral fissure height.
Replaces: