Age influences the difference in performance between viewing conditions.

This scatter plot demonstrates the effect age has on the performance between viewing conditions (eye open vs eyes closed). The y-axis is the difference between the performance measured in seconds (time to loss of balance), while the eyes are open (EO), versus the time to loss of balance while the eyes are closed (EC). The BOT-2 scores have age-adjusted standards for the balance subtest, however the data presented in these graphs are not corrected for age, as this information is not available for specific tasks. Fig 3(A) shows that on the tandem task this difference in performance between viewing conditions is markedly reduced in patients older than 10 years of age. Fig 3(B) shows that on the one-foot stand this difference is reduced in participants older than 12.5 years of age. The red line signifies the approximate age, beyond which the difference between viewing conditions is markedly reduced and no longer variable. The older the kids are the difference in their performance is less influenced by the viewing conditions, and they perform with their eyes closed almost as well as with their eyes open.