Axial elongation among Hong Kong myopic children and adolescents wearing single vision spectacles from a clinical setting.

Fourth, the retrospective design raises concerns about the lack of measurement standardization, the lack of consistent cycloplegic refraction data across all patients, and lack of information on parental myopia, age of myopia onset and time spent on near work and outdoor activities, all of which may be significant factors influencing axial growth and myopia progression patterns 54 .

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