Tertiary Care Based Visual Developmental Diseases Management Model Among Preschool Children in China: a Cluster Randomized Controlled Trial

Visual development disorders including amblyopia , strabismus ,refractive error are an important public health problem among children, and the visual impairment caused by visual development disorders is lifelong and can be profound. Timely discovering and treatment of visual development disorders are significant for the recovering of visual function in children. The national basic public health services of China offer the basic visual acuity screening every year for free. In this study, the investigators try to explore the cost-effective and compliance of the national basic public health services based tertiary care model for the management of visual development disorders among preschool children. This Tertiary care based on disease management model among preschool children was conducted at Yudu county, Jiangxi province, in China. Preschool vision screening relied on the national basic public health services of China (refractive errors examined by the Retinomax autorefractor). Children who failed the screening were randomized into two groups, the intervention group: their parents will be informed and transferred to an ophthalmologist and optometrist at Ophthalmic Referral Center, receiving basic eye examination and therapy (visual corrected by glasses and periodic review); The control group: their parents will be informed and suggest them to take their children to the hospital for further examination by themselves.