Myopia, commonly known as near-sightedness, is the inability to obtain proper focus of distant objects without use of corrective eyewear or refractive surgery and is among the most common problems encountered in ophthalmic practice. Both genetic and environmental factors have been associated with the development of myopia.1 Prevalence estimates for myopia vary widely depending on the population and age group studied. According to National Health and Nutrition Examination Survey data for the 2003-2008 survey years, 30.7% of the US population is affected with myopia.2 Among preschool children in the United States, less than 6% have myopia, although the prevalence increases with age, especially during school years.3,4
Repka MX. Prevention of Myopia in Children. JAMA. 2015;314(11):1137–1139. doi:10.1001/jama.2015.10723
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