The greatest strength of this study is that we investigated illuminance levels in 9 outdoor and 4 indoor locations which are common/regular places where children are likely to be spending their time. Different conditions (four-time points in a day, sun protection, summer and winter seasons, and sunny and cloudy weather) were included while recording illuminance levels to improve understanding of variation in outdoor and indoor environments with regards to the ambient lighting. Illuminance levels recorded at these locations were at an eye level with three relative sensor positions (lux meter) considering a child might face different directions with respect to light sources while doing daily activities. This study was limited by the following conditions: -i) data of only three outdoor locations were reported during the summer season, while both summer and winter season are equally experienced in India. ii) illuminance level was recorded only in Hyderabad city, which is in the southern part of India, but the geographical spread of India is wide where the weather and season can vary with different states. For example- the Himalayan range in the northern region experience lesser clouds compared to other regions. Likewise, states near the northern border of India may experience more foggy weather and blocks sunlight in the winter season as compared to the southern states. Further investigations are warranted for reporting illuminance levels in different parts of India. The current study cannot make recommendations about locations that can be beneficial for myopia given that this study aimed to document how illuminance varies across different locations and conditions but did not investigate its effect on myopia.
Kim Y, Lee JM, Wellsandt E, Rosen AB. Comparison of shoulder range of motion, strength, and upper quarter dynamic balance between NCAA division I overhead athletes with and without a history of shoulder injury. Phys Ther Sport. 2019 Dec 18;42:53-60. doi: 10.1016/j.ptsp.2019.12.007. [Epub ahead of print] 2b1af7f3a8