Table 2.

Criteria used to score Round 2 indicators

Criteria	Definition
Feasible	The indicator can be derived using either available data (eg, routine monitoring) or purposeful data collection (eg, population-based survey, clinic-based study) without substantial additional resources
Actionable	The indicator measures an aspect of eye health within health systems that may be used at a national level to create change through policymaking or strategy development
Reliable	The indicator returns similar results when measuring a stable phenomenon (eg, measurement has a sufficient degree of objectivity)
Internationally comparable	Reporting countries can comply with the relevant data definition; any differences in the indicator values between countries reflect issues in health systems rather than differences in data collection methodologies, coding or measurements