There was a prospective cohort observational study. Forty hyperopic children, 40 myopic children and 120 emmetropia children were randomly selected from grade 1 to grade 3, and were followed up every six months for 3 years. All patients received cycloplegic refraction examination, ocular biological test, binocular visual function test and a questionnaire related to daily eye habits. A multi-level and multi-dimensional data analysis model was constructed to explore the possible factors affecting the occurrence and development of myopia in children.
Study Type
OBSERVATIONAL
Enrollment
200
There was no intervention in each group, and only the natural development was observed
Tianjin Eye Hospital
Tianjin, Tianjin Municipality, China
RECRUITINGThe changes of refractive error
The changes of refractive error between visit time in every 6 months
Time frame: Every 6 months for a period 3 years
The changes of axial length
The changes of axial length between visit time in every 6 months.
Time frame: Every 6 months for a period 3 years
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