Influence of Dynamic-Brightness Environment on Ocular Physiological Parameters

In this study, we were sought to compare the influence of lighting environment with constant brightness and dynamic brightness on human ocular physiological parameters. We chose 20 participants for the human factor experiments. To measure the influence of lighting environment on ocular physiological parameters, three ocular physiological parameters were used in the current study: far point accommodation, the 4th and the 12th terms of aberrations. It was found that far point accommodation presented more significant response to the lighting environment with constant brightness than that with dynamic brightness, and sphere aberrations presented insensitive to the brightness variation. Both aberrations and far point accommodation could reflect the influence of lighting environment on human eye, while far point accommodation presented higher sensitivity to the lighting environment compared to sphere aberrations.