Grading the severity of intermittent distance exotropia: the revised Newcastle Control Score

The Newcastle Control Score (NCS) has been shown to be a reliable, clinically sensitive method for grading the severity of childhood intermittent exotropia (X(T)).1 It incorporates subjective (home control) and objective (clinic control at near and in the distance) criteria, and uses modified descriptions of control as outlined by Rosenbaum and Santiago.2 The home control section asks the parent/guardian …