Evaluation of Progression of Myopia in Children Treated With Vitamin B2 and Outdoor Sunlight Exposure

Inclusion Criteria: * Healthy children ages 6-12 years old with myopia more than 0.50 D and astigmatism no more than 1.5 D. * Caretakers who choose to enroll their child in the study must agree to participate in the study on their own will after knowledge of potential alternatives (spectacle correction, orthokeratology, atropine eye drops, etc.) are explained to the patient's caretaker. Exclusion Criteria: * Known allergy to riboflavin * Birth history of premature birth * Developmental delay or other neurological or mental conditions * Major systemic health problems * Significant anisometropia more than 1.5 Diopters * Any other eye condition which may complicate interpretation of data including: congenital glaucoma, congenital cataract, ectatic corneal condition, amblyopia or strabismus.