2,000
Participants
Start Date
January 1, 2020
Primary Completion Date
December 31, 2025
Study Completion Date
June 1, 2026
Head Mounted Magnifying Glasses
This study was divided into an experimental group and a control group based on whether a head mounted magnifying glass was used.
Shandong Provincial Hospital, Jinan
Second Affiliated Hospital of Zhengzhou University
OTHER
Shandong Provincial Hospital
OTHER_GOV