The prevalence of myopia varies with ethnicity and is particularly high among Asians, with reported prevalences of 80 to 85 percent among adolescents in China and Taiwan [7,8]. Among United States school-age children, Asians have the highest prevalence of myopia (18.5 percent), followed by Hispanic children (13.2 percent) [5]. The rates of myopia in Caucasians (4.4 percent) and African-Americans (6.6 percent) were not significantly different.