Study links outdoor activity to reduced myopia risk in children

A study conducted by the Department of Ophthalmology at the University Clinic of Navarra and published in Frontiers in Medicine examines the rise of childhood myopia. Researchers analyzed 2,262 students in the Madrid community to identify environmental factors contributing to the condition. The findings indicate that spending at least seven hours per week in outdoor environments is associated with a 50% lower risk of developing myopia. The study utilizes CUVAF, a biomarker of conjunctival ultraviolet autofluorescence, to measure cumulative sun exposure. Dr. Sergio Recalde, a study researcher, explained that sunlight causes structural changes in the conjunctiva that can be visualized under ultraviolet light. These structural changes serve as a biological indicator of the time spent outdoors. This research highlights the impact of lifestyle changes, such as increased screen time and decreased outdoor activity, on pediatric eye health.