{"id":34459,"date":"2020-02-27T08:09:29","date_gmt":"2020-02-27T13:09:29","guid":{"rendered":"http:\/\/reviewofmm.com\/?p=34459"},"modified":"2022-08-19T06:18:35","modified_gmt":"2022-08-19T10:18:35","slug":"outdoor-time-can-slow-myopia-onset","status":"publish","type":"post","link":"https:\/\/reviewofmm.com\/outdoor-time-can-slow-myopia-onset\/","title":{"rendered":"Review of Optometry Reports on Benefits of Outdoor Time"},"content":{"rendered":"<p><strong>Feb. 26, 2020<\/strong><\/p>\n<p><img decoding=\"async\" loading=\"lazy\" class=\" wp-image-32400 alignright\" src=\"http:\/\/reviewofmm.com\/wp-content\/uploads\/2019\/08\/GettyImages-960169624-1024x677.jpg\" alt=\"\" width=\"343\" height=\"227\" srcset=\"https:\/\/reviewofmm.com\/wp-content\/uploads\/2019\/08\/GettyImages-960169624-1024x677.jpg 1024w, https:\/\/reviewofmm.com\/wp-content\/uploads\/2019\/08\/GettyImages-960169624-300x198.jpg 300w, https:\/\/reviewofmm.com\/wp-content\/uploads\/2019\/08\/GettyImages-960169624-768x507.jpg 768w\" sizes=\"(max-width: 343px) 100vw, 343px\" \/>A study out of Taiwan shows that increasing the time children spend outdoors can slow the onset of myopia, according to a <a href=\"https:\/\/www.reviewofoptometry.com\/news\/article\/outdoor-time-slows-myopia-onset\" target=\"_blank\" rel=\"noopener noreferrer\">recent report in <em>Review of Optometry<\/em>.<\/a><\/p>\n<p>The study looked at data from the Taiwan School Student Visual Acuity Screen (TSVAS), which required each school in Taiwan to measure uncorrected visual acuity (UCVA) in students in grades one through six every half year from 2001 to 2015. UCVA of 20\/25 or less was considered reduced visual acuity (VA).<\/p>\n<p>From 2001 to 2011, the prevalence of reduced VA in schoolchildren increased from 34.8 percent to 50 percent. Starting in September 2010 schools were encouraged to take students outdoors for 120 minutes every day for myopia prevention. Researchers report the prevalence decreased from 49.4 percent in 2012 to 46.1 percent in 2015. Controlling by gender and grade, they observed a significant constant upward trend in the mean annual change in prevalence before the intervention and a constant decrease of -2.34 percent annually after.<\/p>\n<p><a href=\"https:\/\/www.sciencedirect.com\/science\/article\/pii\/S0161642020301391\" target=\"_blank\" rel=\"noopener noreferrer\">The study&#8217;s authors concluded<\/a> that since the efficacy of increased time outdoors &#8220;has been demonstrated in randomized trials, interventions to promote increased time outdoors may be useful in other areas affected by an epidemic of myopia.\u201d<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Researchers found that the practice reversed the long-term trend of increased low visual acuity.<\/p>\n","protected":false},"author":295,"featured_media":32400,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[1733],"tags":[2315,1388,1977,1978,1979],"yoast_head":"<!-- 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