Liu L, Li R, Huang D, et al. - Since younger children and children with greater initial myopic refractive errors are at a higher risk of myopia progression, researchers sought to determine if premyopia and myopia in preschool children can be predicted by easily obtainable parameters. Height, weight, refraction, axial length (AL), and corneal radius of curvature (CR) were all measured, with a 2-year follow-up. In total, 830 children (433 boys and 397 girls) were involved (40.83 ± 3.43 months old at baseline). A significantly negative association was noted in the multivariate analysis between baseline AL, AL/CR, two myopic parents, and the future SE after adjusting for age and gender. AL and AL/CR could be used as easily accessible indicators to identify subjects at high risk of developing premyopia and myopia in young preschool children.