December 28, 2004Investigative Ophthalmology & Visual Science
Incidence and Progression of Myopia in Singaporean School Children
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Discussion
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Implication
Prospective cohort study observes high myopia incidence and rapid progression in young school children, highlighting ocular biometry as a key predictor for early vision deterioration.
Key Points
- To determine three-year incidence and progression rates of myopia and identify ocular biometric risk factors in young primary school children.
- A prospective cohort study (SCORM) followed 981 children aged 7 to 9 years over a 3-year period across two schools in Singapore (1999-2002).
- Annual examinations included cycloplegic autorefraction and ocular biometry parameter measures conducted under a standardized protocol.
- Three-year cumulative incidence was 47.7% (95% CI: 42.2-53.3) in 7-year-olds, 38.4% (95% CI: 31.4-45.4) in 8-year-olds, and 32.4% (95% CI: 21.8-43.1) in 9-year-olds, occurring at higher rates in Chinese children (49.5% vs. 27.2%).
- Three-year mean cumulative progression was -2.40 D (95% CI: -2.57 to -2.22) in 7-year-olds, -1.97 D (95% CI: -2.16 to -1.78) in 8-year-olds, and -1.71 D (95% CI: -1.98 to -1.44) in 9-year-olds.
- Premyopic children exhibiting greater axial lengths, deeper vitreous chambers, and thinner lenses showed increased risk of developing myopia after controlling for age, gender, race, reading habits, and parental myopia.
Cite This Study
Saw et al. (2004) studied this question.