The Initiating Factors of Myopia Among Primary and Secondary School Students in Tianjin

Tianjin Eye Hospital

Status: Enrolling

Conditions: Myopia; Refractive Error

Treatments: Other: No intervention

Study type: Observational

Funder types: Other

Identifiers

NCT05637827

Tianjin children myopia

Details and patient eligibility

About

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.

Enrollment: 200 estimated patients

Sex: All

Ages: 5 to 11 years old

Volunteers: No Healthy Volunteers

Inclusion criteria

• students in grades 1-3
• Can cooperate with the examination of students

Exclusion criteria

• Obvious strabismus and amblyopia
• Eye diseases that affect vision, such as congenital cataracts, glaucoma, and retinal diseases
• History of ocular surgery

Trial design

200 participants in 3 patient groups

children with hyperopia

Description:

The refractive error and axial length of eye were observed

Treatment:

Other: No intervention

children with emmetropia

Description:

The refractive error and axial length of eye were observed

Treatment:

Other: No intervention

children with myopia

Description:

The refractive error and axial length of eye were observed

Treatment:

Other: No intervention