An estimated 800 million adults globally, primarily in lower-income countries, require near-vision correction, impacting their economic participation. Providing reading glasses, a low-cost intervention, can yield significant productivity gains of 20-30% in vision-intensive jobs. Analyses suggest a high social return on investment, comparable to childhood immunizations. The main challenge is distribution, as traditional clinic-based systems are inaccessible to rural populations. Training community workers to screen for impairments offers a more effective delivery model.