Trajectories of spherical equivalent refraction from grades 1 to 4 in Chinese children.

ABSTRACT:

Background

The development trajectories of children's SER remain unknown. This study aimed to characterize spherical equivalent refraction (SER) trajectories during grades 1-4 in Chinese children.

Methods

This prospective cohort study included 1226 first-grade non-myopic children from 12 public primary schools, randomly selected in two districts in Guangzhou, China. From November 2018 to March 2022, four-wave ocular examinations and questionnaire surveys have been completed. The group-based trajectory modeling was used to explore SER trajectories in grades 1-4.

Results

All five trajectories showed an upward trend and rose faster after grade 2. Children in the sharp-developing (n = 44), high-developing (n = 136), and rapid-developing (n = 237) myopia groups developed m

SUBMITTER: Li Y 

PROVIDER: S-EPMC10720137 | biostudies-literature | 2023 Dec

REPOSITORIES: biostudies-literature