Why myopia occurs?
Myopia occurs because the eyeball is longer than normal. This causes the image to focus in front of the retina rather that on it. People with myopia see close objects clearly but distant objects appear blurred. Myopia is Myopia is usually a hereditary condition that is detected during childhood and continues to worsen until it finally stabilizes, usually in adulthood.
A General observation:
Myopic children tend to be more studious than non myopic classmates, and children who play more sport are less likely to be near sighted and require glasses. But what is cause and what is effect is debatable.
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