Myopia occurs when the eye grows too long to focus light perfectly on the retina. Instead light is focused in front of the retina causing distance vision to be blurred.
Approximately 1/3 of people in the US have myopia, and this number continues to increase every year. Once a child develops myopia the average rate of progression is 0.50D/year. That means if a 10 year old is a -2.00 they will be -6.00 by age 18.
Higher levels of myopia does not only mean thicker glasses and more inconvenience.
Higher levels of myopia are associated with increased risk of: