Uncorrected refractive error is often ignored in the realm of global health priorities, yet its substantial impact on the economic and personal wellbeing of individuals and societies worldwide is undeniable. Myopia (shortsightedness), hyperopia (farsightedness), and astigmatism, grouped together under the term ‘refractive error’, cause blurred distance and/or near vision, and presbyopia (age-related loss of accommodation) causes blurred near vision.