New research suggests that adding 30 minutes of daily outdoor activity; reduces the progression of nearsightedness, call myopia; in children if the activity is continue. However, the study, conduct by researchers in Beijing, China; is publish in issue of Translational Vision Science & Technology (TVST).
Myopia is recognize as a major public health issue in East Asia, particularly in China; and is expect to affect half of the world’s population by 2050; according to a 2016 study out of the Brien Holden Vision Institute. However, evidence shows that severe myopia increases the risk of developing glaucoma or a detach retina, diseases that can lead to vision loss. Myopia is cause by the lengthening of the eye, which impacts how light is bent when entering the eye and, as a result, affects vision.
Prospective interventional study
Scientists, led by Dr. Yin Guo of the Tongren Eye Care Center, Beijing Tongren Hospital at Capital Medical University; study 382 children ages 6 and 7 at two Beijing-area schools for one year in a prospective interventional study. However, students in the study group jogged for 30 minutes outdoors daily. But the control group did not add this extra outdoor activity to their schedules.
Examinations at the end of one year show that students in the study group; without myopia at the baseline had lower incidence of myopia compare with students in the control group. Students with myopia at baseline also show slower progression of myopia compare; with students in the control group. However, annual follow-up exams following the conclusion of the one-year study show that in year four; incidence of myopia was similar among the study and control groups.
Increasing outdoor activity
Our research provides further evidence and confirmation of an association between increase outdoor activity; and decrease prevalence and incidence of myopia. However this study also indicates that increasing outdoor activity; may delay the progression of myopia for up to two years. We now need to translate these findings into action among children in China; and around the world in order to help preserve their vision.” Dr. Yin Guo of the Tongren Eye Care Center
However, the authors also indicate that their results could have implications for how China; and other countries structure childhood outdoor activity levels to combat the increasing incidence of myopia and its progression.
However, this latest study on myopia and activity in children; adds to a growing body of scientific research on this topic. Additional studies were present at the ARVO 2019 Annual Meeting in Vancouver; BC, pointing to increase contact with man-made; and indoor environments as potential causes of myopia. Additional information on myopia research is available in a February 2019; special issue of IOVS, International Myopia Institute (IMI) White Papers.