How can we make refractive error services sustainable?

No matter where a service is being delivered, basic human resources, infrastructure, and equipment must be in place. Individuals tasked with delivering a comprehensive eye health service must also be trained to do so. In this step we look at the factors affecting the sustainability of refractive error services and assess how to align them within health systems.

Can you identify some of the key questions planners must consider before setting up refractive error services in any setting? Why and how do planners measure output of refractive error services and optical labs?