Myopia

Common Vision Conditions

Myopia

Myopia, or nearsightedness, occurs when light entering the eye is focused before it reaches the retina either because the eyeball is too long or the cornea has too much curvature. The retina functions similar to film in a camera. If light is not perfectly focused on the retina, vision will be blurred. In the case of nearsightedness, near objects are seen clearly but distant objects are blurred.

Prevalence and Associations

Affects nearly 30% of the U.S. population
May have a hereditary component
Growing evidence that it may be caused by the stress of too much close vision work
Normally occurs first in school age children and generally develops before age 20

Symptoms Blurred distance vision

Clear near vision

Squinting
Poorer night vision
Headache not usual

Treatment

Eyeglasses
Contact Lenses

Refractive Surgery

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