Abstract
Refractive error, the second leading cause of blindness across the globe is an umbrella term comprising of conditions where rays of light entering the eye are unable to focus on the retina. Examples of such errors include hyperopia (far-sightedness), myopia (near-sightedness), astigmatism, and presbyopia (age related visual changes). Myopia is particularly common, affecting 23% of the worldโs population. These values are set to soar with 49.8% of the global population expected to be myopic by 2050, 9.8% of whom will have high degrees of myopia.
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