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This work is a detailed exposition of a relatively new science, which the authors choose to call the "science of seeing." They make a distinction at the outset between the "science of vision" as practiced by the ophthalmologist, limiting it largely to the correction of optical and muscular anomalies, and the "science of seeing," which takes in all the complex elements involved in the use of visual sense. These include primarily the factors of lighting, but also other elements, such as speed, accuracy and ease of seeing, the causes of general and special fatigue and work efficiency.
The whole subject is treated more from the standpoint of the illuminating engineer, and emphasis is placed on the study of man as a "seeing machine." This term and concept predominates throughout. The authors elaborate on the premise that prolonged near work and reduced inadequate (indoor) illumination are the twin curses of modern
Pascal JI. The Science of Seeing. Arch Ophthalmol. 1938;19(6):1033–1035. doi:10.1001/archopht.1938.00850180185019
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