Seasonal variation of refractive error change among young schoolchildren in a population-based cohort study in Taipei.

Purpose: To investigate the relationship between seasonal variation of daylight length and spherical equivalent (SE) progression among the schoolchildren participating in the Myopia Investigation Study in Taipei.

Methods: We used the first-year data from grade 2 schoolchildren who completed all the baseline and two follow-up examinations (n=6790). There were two 6-month intervals between visits over winter and summer, respectively.

Risk factors for myopia progression in second-grade primary school children in Taipei: a population-based cohort study.

Purpose: To evaluate the 1-year progression of myopia and associated risk factors in second-grade primary school children.

Methods: The myopia investigation study in Taipei provided semiannual visual acuity testing and cycloplegic refraction for all second-grade primary school children (mean age: 7.49 years) in Taipei who provided parental consent.

Prevalence and association of refractive anisometropia with near work habits among young schoolchildren: The evidence from a population-based study.

Background: Lifestyle behaviour may play a role in refractive error among children, but the association between near work habits and refractive anisometropia remains unclear.

Methods: We estimated the prevalence of refractive anisometropia and examined its association with near work activities among 23,114 children in the Myopia Investigation Study in Taipei who were grade 2 elementary school students at baseline in 2013 and 2014. Baseline data on demographics, medical history, parental history and near work habits were collected by parent-administered questionnaire survey.

Myopia Development Among Young Schoolchildren: The Myopia Investigation Study in Taipei.

Purpose: To investigate the annual incidence of myopia and associated factors among young schoolchildren in Taipei City.

Methods: The Myopia Investigation Study in Taipei was a citywide, population-based cohort study. During the fall 2013 semester (baseline), a total of 11,590 grade 2 schoolchildren completed ocular examination and were included for further analysis.

Study design, rationale and methods for a population-based study of myopia in schoolchildren: the Myopia Investigation study in Taipei.

Background: To describe the study design, rationale and methodology of the Myopia Investigation Study in Taipei (MIT).

Design: The MIT was a city-wide, population-based cohort study.

Participants: Participants were grade 2 students (Fall 2013) of all 153 elementary schools in Taipei City.