Study Finds Even One Hour of Screen Time Daily Raises Nearsightedness Risk

Study Finds Even One Hour of Screen Time Daily Raises Nearsightedness Risk A comprehensive systematic review and dose-response meta-analysis has confirmed a strong link between digital screen time and the growing prevalence of myopia, raising concerns for businesses and policymakers managing workplace digital exposure.

Published in JAMA Network Open, the study analysed 45 research papers, encompassing data from 335,524 participants, to evaluate the correlation between screen exposure and myopia risk. The findings highlight a significant dose-response relationship, with myopia risk increasing sharply between one to four hours of daily screen use and continuing to rise at a slower rate thereafter.

Key Findings

An additional hour of screen time per day increases the odds of developing myopia by 21%.
The risk follows a sigmoidal curve, showing a steep increase between one to four hours before plateauing.
A potential safety threshold exists at less than one hour per day of digital exposure.
Combined screen use (smartphones, tablets, computers, and televisions) presents a higher risk than individual device exposure.

Implications for the Business Sector

For industries reliant on prolonged screen usage, such as IT, finance, and digital marketing, these findings signal an urgent need for workplace interventions. Employers must consider strategies to mitigate the impact of screen exposure on eye health, particularly for remote and hybrid workers spending extended hours on digital devices.

Practical Workplace Solutions

Screen Time Policies: Introducing recommended screen breaks and maximum exposure limits.
Optimised Work Environments: Implementing adjustable lighting and anti-glare screens.
Employee Health Programs: Encouraging outdoor breaks and offering eye health check-ups.
Educational Campaigns: Raising awareness about myopia risks and digital eye strain.

Broader Public Health Concerns

With myopia cases projected to affect nearly half the global population by 2050, this study reinforces the urgent need for preventive measures. Policymakers and industry leaders must collaborate to develop digital use guidelines that prioritise eye health while supporting productivity.

As the digital era continues to evolve, businesses must balance technological advancements with employee well-being, ensuring sustainable work practices that safeguard long-term vision health.