The Incidence and Progression of Myopia: Cohort Study

Completed

• Conditions: Myopia

• Registration Number: NCT03244670
• Lead Sponsor: Sun Yat-sen University

Brief Summary

A cohort study on incidence and progression of myopia in a group of medical students

Detailed Description

A prospective cohort study to investigate the refractive error development, progression and their risk factors in young adult population comprises a group of medical students in China for two years

Study Timeline

• Study First Submitted: 2017-08-07
• Study First Submitted QC: 2017-08-07
• Study First Posted: 2017-08-09
• Study Start: 2017-08-15
• Primary Completion: 2019-07-19
• Status Verified: 2019-09
• Study Completion: 2019-09-19
• Last Update Submitted: 2019-09-19
• Last Update Posted: 2019-09-20

Recruitment & Eligibility

• Status: COMPLETED
• Sex: All
• Target Recruitment: 350

Inclusion Criteria

• Volunteer subject, , willing to follow the protocol and able to read, comprehend and sign the informed consent form,
• Age between 17 and 23 years

Exclusion Criteria

• Vulnerability of the subject,
• Participation in another study which might have an influence on vision or interfere with study assessments,
• Aphakic or pseudophakic (intraocular lens)
• Participants who are wearing ortho-K lenses, or undergone any kind of myopia control treatments or undergone refractive surgery.
• Any current or evolving pathology manifested in the eye or the appendages which might have an influence on vision, or interfere with study assessments (e.g. AMD, glaucoma...),
• Any previous ocular surgery which might have an influence on vision or interfere with study assessments (e.g. iridectomy, refractive surgery...),
• Any untreated and/or uncontrolled systemic condition which might have an influence on vision, or interfere with study assessments (e.g. uncontrolled diabetes, uncontrolled high blood pressure...),
• Any medical treatment or medication which might have an influence on vision or interfere with study assessments (e.g. antidepressants, drugs with atropinic effects...),

Study & Design

• Study Type: OBSERVATIONAL
• Study Design: Not specified

Primary Outcome Measures

Name	Time	Method
refraction	Change from baseline for two years	The participants will be measured for their refractive error by optometrist, and observe the rate of progression of myopia

Trial Locations

Locations (1)

Zhongshan Ophthalmic Center; 🇨🇳 Guangzhou, Guangdong, China