Myopia is a common visual disorder with increasing prevalence among developed countries of the world. Current evidence suggests that myopia affects a large portion of the world population, reaching over 90% in Asian countries, and typically develops in children of 6 to 8 years of age. Over the past half-century, rapid progress of myopia has been reported. Treatment of myopia at an early stage is of paramount importance, as shortsightedness poses a significant risk for several ocular disorders which could result in blindness. These conditions include retinal detachment, glaucoma, cataract, and macular degeneration .