Background: Refractive errors are common in children and are the commonest cause of visual impairment around the world and the second leading cause of treatable blindness. As children progress in school, they face increasing demands on their visual abilities. Vision problems are common among school-age kids. According to Prevent Blindness America, one in four school-age children have vision problems that, if left untreated, can affect learning ability, personality and adjustment in school. Therefore, it is crucial to protect school aged children 5-18 sight.

BackgroundObesity and overweight among children and adolescents is continuously worldwide increasing problem, which put this vital segment of population at greater risk for health problems compared with their normal-weight counterparts and are more likely to become obese adults. Obese children and adolescents are more likely to have serious health conditions, such as