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What causes myopia?

All types of myopia, regardless of the age it starts, cause blurry vision for things far away. The size and shape of your eye changes how light is refracted or reflected on the back of your eye. In myopia, your eyeball may be too big, or your cornea (the transparent surface of the eye) may be too curved for the light to reflect correctly. Changes in the size or shape of your eye generally occur during development prior to birth or in growth periods. Myopia tends to run in families.

Continue Learning about Myopia (Nearsightedness)

What is youth onset myopia?
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Myopia is the medical term for nearsightedness. Youth onset means that the nearsightedness started d...
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What is the rate of incidence of youth onset myopia?
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The rate of occurrence of myopia in general (not just youth onset) has been increasing. In the past ...
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What is the rate of incidence of myopia?
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Myopia is a common vision impairment. It is found in approximately 25 percent of people in the Unite...
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Is early adult-onset myopia serious?
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Early adult-onset myopia is mildly serious and should be treated. An inability to see things clearly...
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Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.