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Understanding
Myopia (Nearsightedness) |
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In
the normal eye, light enters through the cornea
(the clear front surface of the eye) and comes
to a focus on the retina in the back of the eye.
Myopia, or nearsightedness, occurs when the eye
is longer than average or the cornea's curvature
is steeper than average. This causes the light
to focus somewhere in front of the retina, resulting
in blurred distance vision. People who have myopia
can usually see well up close. This type of refractive
error usually develops at an early age.
Myopia is usually corrected with glasses or contact
lenses, but it can also be corrected surgically
with LASIK or PRK.
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