The Incidence and Progression of Myopia: Cohort Study

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

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…),