34,400
Participants
Start Date
October 1, 2019
Primary Completion Date
October 31, 2021
Study Completion Date
December 1, 2021
screening
This study included 34,400 students, as part of the Tianjin Eye Study who performed a 3-year follow-up from 2019 to 2021. All participants underwent yearly noncycloplegic refraction and ocular examinations. Time-related changes in sphere, cylinder, and spherical equivalent (SE) measurements in both sexes were analyzed.
Tianjin Eye Hospital, Tianjin
Tianjin Eye Hospital
OTHER