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From reading books to increased smart device screen time

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  • Contributors All authors contributed equally to the planning and completion of this manuscript.

  • Funding The authors have not declared a specific grant for this research from any funding agency in the public, commercial or not-for-profit sectors.

  • Competing interests DM is the CEO and TYW is a cofounder of the health technology company, Plano Pte Ltd, Singapore, which develops software solutions and applications for monitoring vision and smart device screen time usage.

  • Patient consent None declared.

  • Provenance and peer review Not commissioned; internally peer reviewed.