Understanding Why Your Vision Is Blurry Refractive errors are one of the most common vision problems affecting people worldwide. These common eye conditions occur when the shape of your eyes prevents light rays from focusing directly on the retina, resulting in blurred vision. The main types of refractive errors are nearsightedness (myopia), far-sightedness (hyperopia), astigmatism, ...
source https://brintonvision.com/lasik-questions/refractive-errors-a-comprehensive-guide/
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