Abstract
La Fayette, Ind., Oct. 14, 1895. To the Editor: —Being called upon frequently to make color tests for railroad employes, I have been using a method which Dr. Carrow of Ann Arbor gave us in a course on ophthalmology. Whether it has been published or not, I can not say. If it has, this will emphasize its importance and convenience, and if not, will describe it for the first time. The skeins of wool have been abandoned as consuming too much time and occupying too much space. The test consists of a sample card of Corticelli embroidery silk. On the folding card are 269 colors all named. Over the names must be pasted blank paper to hide them. These colors may now be numbered consecutively. In testing, we direct the patient's attention to one of the colors; blue, green or red. We will take, for example, blue, and ask him
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callSimilar Papers
More From: JAMA: The Journal of the American Medical Association
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
