Prevalence
According to an American study published in Archives of Ophthalmology, nearly three in 10 children (28.4%) between the ages of five and 17 have astigmatism. A recent Brazilian study found that 34% of the students in one city were astigmatic. Regarding the prevalence in adults, a recent study in Bangladesh found that nearly 1 in 3 (32.4%) of those over the age of 30 had astigmatism.
A recent Polish study revealed "with-the-rule astigmatism" may lead to the onset of myopia.
A number of studies have found the prevalence of astigmatism increases with age.
Read more about this topic: Astigmatism (eye)
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