Research Article
Early Age of the First Myopic Spectacle Prescription, as an Indicator of Early Onset of Myopia, Is a Risk Factor for High Myopia in Adulthood
Figure 1
: A self-completed questionnaire was used to collect sex, age, current myopia degree, high myopia in parents, age at first spectacle use, refractive power of first spectacles, and life habits at four different educational stages.