
The introductory article covers the study design, market surveyed, data analysis and results that this enlightening Needs, Symptoms, Incidence, Global Eye Health Trends (NSIGHT) Study investigated. The result is a blend of the esoteric and high tech with the practical, anthropological realities that face eye care providers today. The importance of communication, being a good listener, and understanding both the psychophysics of perception and psychology of patients is clear from these in depth analyses.