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Article
May 5, 1900

VISION AND COLOR PERCEPTION FOR RAILWAY SERVICE.

Author Affiliations

OCULIST AND AURIST, C., R. I. & P. R'Y. DENVER, COLO.

JAMA. 1900;XXXIV(18):1104-1107. doi:10.1001/jama.1900.24610180016001f
Abstract

At the last meeting Dr. Pritchard favored the Academy with an article on the "Physical Examination of Railway Men," which included the test for vision and color perception. In the discussion that followed, many valuable points were brought out, and in considering the vision and color perception for railway service I must necessarily repeat some of the facts mentioned at that meeting. For efficient service it is essential that those who give and receive signals have normal vision and perfect color perception.

At the present time no uniform standard exists among the various roads that require applicants to pass an examination previous to entering their service. Their standard varies from a high to a low one. This is not as it should be, for there ought to be a uniformly high standard for physical examination, vision, and also some uniformity as to the colored yarns, flags and lights used. The

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