Myopia or nearsightedness in children has been growing at a fast pace over the last 25 years with more than 40% of the population in the United States who is currently myopic. These changes are rapid and they continue to worsen. Numerous published studies have shown that Ortho-K serves as an excellent method to slow or prevent the progression of myopia, but it works best at an early age, as young as five. Myopic changes are generally permanent, treatment will not reverse myopia, but rather preventing it from deteriorating.