Source link : https://health365.info/analysis-displays-only-one-hour-of-display-screen-time-will-increase-possibility-of-nearsightedness/
Every hour an individual spends squinting right into a smartphone or looking at a display screen will increase their possibility of nearsightedness, a brand new proof assessment suggests.
Each day by day one-hour increment in virtual display screen time is related to 21% upper odds of myopia, researchers document in JAMA Community Open.
What is extra, the chance continues to extend as extra time every day is spent with displays, researchers discovered.
“Myopia risk increased significantly from one to four hours of screen time and then rose more gradually thereafter,” the analysis workforce led by means of Younger Kook Kim, an affiliate professor of ophthalmology with the Seoul Nationwide College Faculty of Medication in South Korea, wrote.
The chance of nearsightedness is doubled for individuals who spend 4 or extra hours with a display screen on a daily basis, effects display.
The assessment suggests a “potential safety threshold of less than one hour per day of exposure, with an increase in odds of up to four hours,” the researchers concluded.
Through 2050, just about one-half of the sector’s inhabitants is predicted to be nearsighted, researchers stated in background notes.
Nearsightedness is when close-up items glance transparent however far-off items seem blurry, consistent with the American Academy of Ophthalmology.
For instance, a nearsighted particular person can learn a map however has hassle seeing neatly sufficient to force a automobile with out glasses or contacts.
“The projected surge in myopia cases is likely fueled by environmental factors prevalent in urbanized societies, with major contributors being increased near-vision activities and reduced outdoor time,” the researchers wrote.
Smartphones, capsules and different displays have “introduced new forms of near-work activity,” researchers stated.
“As children increasingly embrace smart devices at younger ages and spend more time on digital screens, there is an urgent need to better understand the association of digital screen time with myopia,” the researchers stated.
For the brand new paper, researchers pooled knowledge from 45 prior research involving greater than 335,000 folks.
The knowledge confirmed an important dose-response affiliation. In different phrases, the extra time folks spend with displays, the higher their possibility of nearsightedness.
This possibility is unbiased of different actions that require folks to paintings their close to imaginative and prescient, like studying or writing, researchers stated.
“It is also likely that digital screen use and other near-vision tasks collectively contribute to myopia risk, potentially influencing the overall dose-response trend,” researchers stated.
“This suggests that simply reducing screen time in favor of traditional near-vision activities may not be an effective prevention strategy,” researchers added. “A more effective approach to the mitigation of myopia risk would involve minimizing overall near-work activities while promoting increased outdoor time.”
Additional info:
The American Academy of Ophthalmology has extra on nearsightedness.
Ha A, et al. Virtual Display Time and Myopia: A Systematic Evaluation and Dose-Reaction Meta-Research. JAMA Community Open. (2025) DOI: 10.1001/jamanetworkopen.2024.60026
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Analysis displays only one hour of display screen time will increase possibility of nearsightedness (2025, February 25)
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Publish date : 2025-02-26 13:27:58
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