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ROTATOR AND ILLUMINATOR FOR PSEUDOISOCHROMATIC PLATES

ROTATOR AND ILLUMINATOR FOR PSEUDOISOCHROMATIC PLATES Abstract IT IS GENERALLY accepted that testing with pseudoisochromatic plates should take into consideration the following requirements: (1) neutral illumination; (2) sufficient illumination; (3) a determined angle of the incident light; (4) a 90-degree viewing angle; (5) a fixed distance of the plates; (6) a limited exposure time for each single plate; (7) showing of all plates in their entirety; (8) variation from time to time in order of presentation of the plates. When the testing arrangements now in use are analyzed briefly with regard to these requirements, the following statements may be made: In the instructions for testing with pseudoisochromatic plates, illumination by natural daylight from the north sky or artificial daylight is required, since it is known that light obtained from ordinary electric bulbs allows more persons with color-defective vision to pass the plates than a "neutral illumination" (Kissin and Eidelmann1; Farnsworth and Reed2; Hardy, Rand, and References 1. Kissin, P., and Eidelmann, B.: Die pseudoisochromatischen Tafeln von Stilling, Nagel und Ishihara bei Tageslicht und bei künstlicher Beleuchtung , von Graefes Arch. Ophth. 133:298, 1935.Crossref 2. Kissin, P.: Künstliche Tageslichtbeleuchtung als Lichtquelle bei der Prüfung vermittels der pseudo-isochromatischen Tafeln von Ishihara , von Graefes Arch. Ophth. 134:38, 1935.Crossref 3. Farnsworth, D., and Reed, J. D.: Effect of Certain Illuminants on Scores Made on Pseudoisochromatic Tests, Color Vision Report No. 4, Research Department, U. S. Submarine Base, New London, Conn., Nov., 1943. 4. Hardy, L. H.; Rand, G., and Rittler, M. C.: Effect of Quality of Illumination on Results of Ishihara Test , J. Optic Soc. America 36:86, 1946.Crossref 5. Priklonsky, M.: Zur Frage der rationellen Beleuchtung der Arbeitsräume bei Farbensinnprüfungen mit pseudoisochromatischen Tafeln , Klin. Monatsbl. Augenh. 118:259, 1951. 6. Schmidt, I.: Study of Effect of Illumination on Interpretation of Pseudoisochromatic Plates, U. S. Air Force, School of Aviation Medicine, Randolph Field, Texas, Special Report. May, 1951. 7. Sloan, L. R.: Daylight Fluorescent Lamp as a Source of Illumination in Tests of Color Perception with Pseudo-Isochromatic Plates, U. S. Air Force, School of Medicine, Randolph Field, Texas, Project 130, Report No. 1, April, 1943. 8. Judd, D. B.: Administration and Interpretation of the 46 Plate American Optical Company Text, Report to Bureau of Medicine and Surgery File IV-3, April, 1943. 9. Hardy, L. H.; Rand, G., and Rittler, M. C.: Color Vision Testing, Correspondence , Arch. Ophth. 43:144, 1950.Crossref 10. Farnsworth, D., and Kimble, P. F.: Compilation of Research on Abridgement of the AO 1st Edition Pseudo-Isochromatic Plates, Color Vision Report No. 14, U. S. Submarine Base, New London, Conn., Dec., 1946. 11. Medical Service Standards of Medical Examination for Flying, Special Regulations No. 40-110-1 Air Force Regulation No. 160-1, Washington 25, D. C., April, 1949. 12. Rabkin, E. B.: Polychromatic Plates for Testing Colour Vision , Ed. 2, State Medical Publishing House, U. S. S. R., 1939. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png A.M.A. Archives of Ophthalmology American Medical Association

ROTATOR AND ILLUMINATOR FOR PSEUDOISOCHROMATIC PLATES

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Publisher
American Medical Association
Copyright
Copyright © 1952 American Medical Association. All Rights Reserved.
ISSN
0096-6339
DOI
10.1001/archopht.1952.00920010078011
Publisher site
See Article on Publisher Site

Abstract

Abstract IT IS GENERALLY accepted that testing with pseudoisochromatic plates should take into consideration the following requirements: (1) neutral illumination; (2) sufficient illumination; (3) a determined angle of the incident light; (4) a 90-degree viewing angle; (5) a fixed distance of the plates; (6) a limited exposure time for each single plate; (7) showing of all plates in their entirety; (8) variation from time to time in order of presentation of the plates. When the testing arrangements now in use are analyzed briefly with regard to these requirements, the following statements may be made: In the instructions for testing with pseudoisochromatic plates, illumination by natural daylight from the north sky or artificial daylight is required, since it is known that light obtained from ordinary electric bulbs allows more persons with color-defective vision to pass the plates than a "neutral illumination" (Kissin and Eidelmann1; Farnsworth and Reed2; Hardy, Rand, and References 1. Kissin, P., and Eidelmann, B.: Die pseudoisochromatischen Tafeln von Stilling, Nagel und Ishihara bei Tageslicht und bei künstlicher Beleuchtung , von Graefes Arch. Ophth. 133:298, 1935.Crossref 2. Kissin, P.: Künstliche Tageslichtbeleuchtung als Lichtquelle bei der Prüfung vermittels der pseudo-isochromatischen Tafeln von Ishihara , von Graefes Arch. Ophth. 134:38, 1935.Crossref 3. Farnsworth, D., and Reed, J. D.: Effect of Certain Illuminants on Scores Made on Pseudoisochromatic Tests, Color Vision Report No. 4, Research Department, U. S. Submarine Base, New London, Conn., Nov., 1943. 4. Hardy, L. H.; Rand, G., and Rittler, M. C.: Effect of Quality of Illumination on Results of Ishihara Test , J. Optic Soc. America 36:86, 1946.Crossref 5. Priklonsky, M.: Zur Frage der rationellen Beleuchtung der Arbeitsräume bei Farbensinnprüfungen mit pseudoisochromatischen Tafeln , Klin. Monatsbl. Augenh. 118:259, 1951. 6. Schmidt, I.: Study of Effect of Illumination on Interpretation of Pseudoisochromatic Plates, U. S. Air Force, School of Aviation Medicine, Randolph Field, Texas, Special Report. May, 1951. 7. Sloan, L. R.: Daylight Fluorescent Lamp as a Source of Illumination in Tests of Color Perception with Pseudo-Isochromatic Plates, U. S. Air Force, School of Medicine, Randolph Field, Texas, Project 130, Report No. 1, April, 1943. 8. Judd, D. B.: Administration and Interpretation of the 46 Plate American Optical Company Text, Report to Bureau of Medicine and Surgery File IV-3, April, 1943. 9. Hardy, L. H.; Rand, G., and Rittler, M. C.: Color Vision Testing, Correspondence , Arch. Ophth. 43:144, 1950.Crossref 10. Farnsworth, D., and Kimble, P. F.: Compilation of Research on Abridgement of the AO 1st Edition Pseudo-Isochromatic Plates, Color Vision Report No. 14, U. S. Submarine Base, New London, Conn., Dec., 1946. 11. Medical Service Standards of Medical Examination for Flying, Special Regulations No. 40-110-1 Air Force Regulation No. 160-1, Washington 25, D. C., April, 1949. 12. Rabkin, E. B.: Polychromatic Plates for Testing Colour Vision , Ed. 2, State Medical Publishing House, U. S. S. R., 1939.

Journal

A.M.A. Archives of OphthalmologyAmerican Medical Association

Published: Jul 1, 1952

References