Table 2.

Outcomes and their definitions

Name	Definition	Nature	How it is assessed	By whom
optometry accuracy	whether it is optimally prescribed for spectacle	primary outcome	spectacle prescription	USP and companion
completion of process items	the percentage of recommended procedures performed	secondary outcome	quality checklist	USP and companion
patient experience score	whether it is patient-centered	secondary outcome	PPPC-R rating scale	USP
cost	optometry fees, prices of recommended lenses and frames	secondary outcome	data collection form	USP and companion
service time	optometry time and waiting time	secondary outcome	data collection form	USP and companion