On average, prescriptions increase the fastest in children between the age of 6 to 14 among Asians

Check for the warning signs of myopia.

Who is Affected by Myopia?

Genetics play an important role in developing myopia. A child where both parents are myopic has a much higher chance of developing high myopia (over 6.00 D) than one with only one or no parent that is myopic(15). Asians also tend to be much more susceptible to developing myopia early in life. The progression of myopia in Chinese according to many studies averages at an 0.8 D increase per year between the ages of 7-14 years old (4), which is in most cases the fastest growth period in terms of the length of the eyeball. It is not uncommon to see an over 2.00 D increase in a single year in Chinese children. These children who are nearsighted at a young age (10 years old or younger) are very likely to become highly myopic (5). Asians also tend to have a higher degree of myopia and the degree of myopia may continue to increase through their early adulthood.

Progression of myopia in Chinese
Sun exposure helps to slow down increases in myopia

The environment also plays a major role in worsening the degree of myopia. Many studies have linked urbanization and education to myopia (7,14). Long hours of reading, computer use and near work, in general, are believed to be negative environmental factors in developing myopia (2). Nearsightedness is twice as common in middle and higher income provinces in China compared to the more rural areas of China with less near-work demands and where children experience less school pressure (9).

There are many studies that show outdoor activities with sun exposure helps to slow down increases in myopia (16). A lack of sun exposure can be a contributing factor to the development of myopia in children (6). A rule of thumb for a good amount of outdoor activities to prevent myopia progression is 12 hours a week for children during their growth years.

Sun exposure helps to slow down increases in myopia
» References

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