Corneal curvature radius and associated factors in Chinese children: the Shandong Children Eye Study.

Purpose: To investigate the distribution of the (CCR) and its associated factors in children.

Methods: Using a random cluster sampling method, the school-based, cross-sectional Shandong Children Eye Study included children aged 4 to 18 years from the rural county of Guanxian and the city of Weihai in the province of Shandong in East China. CCR was measured by ocular biometry.