The human eye is a complex organ that functions in ways many do not realize.  It uses sophisticated adaptation mechanisms to operate in various “modes” as dictated by environmental conditions.  Coordinated use of two eyes simultaneously provides additional “modes” of functionality.
     The structure of the human eye is explored in this installment of the “Workplace Illumination” series.  Basic functions of the eye, derived directly from its physical structure, are also discussed.  Increasingly complex functions and adaptations are explored further in subsequent installments, building on this foundation of knowledge.

     To maintain a safe, productive workplace, one must understand the physical environment and how humans interact with it.  Providing proper illumination to workspaces requires knowledge of the basic concepts of light transmission and vision.  These topics are undertaken early in the “Workplace Illumination” series to provide this foundation.
     Extensive research has garnered great insight into these topics, such that much of it is beyond the scope of this series.  The presentation in the series provides an introduction to the information available at a depth appropriate for practical application.  It also serves as a refresher for those revisiting the subject matter.