Introduction to Eye Monitoring
Scientific study of human eye movements began in the late 19th century, and employed a variety of measurement techniques. Many systems, such as that of Delabarre  were mechanical, while others like Dodge and Cline  used photography. Since their inception, eye monitoring systems have not been considered important innovations in-and-of themselves, but rather tools that allow scientists to study the gaze behavior of experimental subjects. While much information concerning basic mechanisms can be gleaned from responses to controlled laboratory studies, there is also much interest in behaviors occurring in the “real world”. Over time, technological advances have allowed eye monitoring systems to emerge from the laboratory, and today the use of eye tracking in the study of the performance of everyday tasks is routine in a number of applied disciplines .
KeywordsScanning Laser Ophthalmoscope Vergence Movement Magnetic Search Coil Dual Purkinje Image Horizontal Vergence
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