Cover Image

Color vision and the railways: Part 1. The railway LED lantern test

Purpose. Lantern tests and practical tests are often used in the assessment of prospective railway employees. The lantern tests rarely embody the actual colors used in signaling on the railways. Practical tests have a number of problems, most notably consistency of application and practicability. Th...

Full description

Saved in:
Bibliographic Details
Main Authors: Dain, Stephen J, Casolin, Armand, Long, Jennifer, Hilmi, Mohd Radzi
Format: Article
Language:English
Published: Wolters Kluwer Health 2015
Subjects:
RE Ophthalmology
Online Access:http://irep.iium.edu.my/72276/1/Color_Vision_and_the_Railways__Part_1__The_Railway.5.pdf
http://irep.iium.edu.my/72276/
https://journals.lww.com/optvissci/Fulltext/2015/02000/Color_Vision_and_the_Railways__Part_1__The_Railway.5.aspx
Tags: Add Tag
No Tags, Be the first to tag this record!
id my.iium.irep.72276
record_format dspace
spelling my.iium.irep.722762019-05-17T06:34:40Z http://irep.iium.edu.my/72276/ Color vision and the railways: Part 1. The railway LED lantern test Dain, Stephen J Casolin, Armand Long, Jennifer Hilmi, Mohd Radzi RE Ophthalmology Purpose. Lantern tests and practical tests are often used in the assessment of prospective railway employees. The lantern tests rarely embody the actual colors used in signaling on the railways. Practical tests have a number of problems, most notably consistency of application and practicability. This work was carried out to provide the Railway LED Lantern Test (RLLT) as a validated method of assessing the color vision of railway workers. Methods. The RLLT, a simulated practical test using the same LEDs (light-emitting diodes) as are used in modern railway signals, was developed. It was tested on 46 color visionYnormal (CVN) and 37 color visionYdeficient (CVD) subjects. A modified prototype was then tested on 106 CVN subjects. Results. All 106 CVN subjects and most mildly affected CVD subjects passed the modified lantern at 3 m. At 6 m, 1 of the 106 normal color vision subjects failed by missing a single red light. All the CVD subjects failed. The RLLT carried out at 3 m allowed mildly affected CVD subjects to pass and demonstrate adequate color vision for the less demanding railway tasks. Carried out at 6 m, it essentially reinforced normal color vision as the standard. Conclusions. TheRLLTisasimplyadministeredtestthathasadirectlinktotheactualvisualtaskoftherailworker.TheRLLT lantern has been adopted as an approved test in the Australian National Standard for Health Assessment of Rail Safety Workers in place of a practical test. It has the potential to be a valid part of any railway color vision standard. Wolters Kluwer Health 2015-02 Article PeerReviewed application/pdf en http://irep.iium.edu.my/72276/1/Color_Vision_and_the_Railways__Part_1__The_Railway.5.pdf Dain, Stephen J and Casolin, Armand and Long, Jennifer and Hilmi, Mohd Radzi (2015) Color vision and the railways: Part 1. The railway LED lantern test. Optometry and Vision Science, 92 (2). pp. 138-146. ISSN 1040-5488 https://journals.lww.com/optvissci/Fulltext/2015/02000/Color_Vision_and_the_Railways__Part_1__The_Railway.5.aspx 10.1097/OPX.0000000000000460
institution Universiti Islam Antarabangsa Malaysia
building IIUM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider International Islamic University Malaysia
content_source IIUM Repository (IREP)
url_provider http://irep.iium.edu.my/
language English
topic RE Ophthalmology
spellingShingle RE Ophthalmology
Dain, Stephen J
Casolin, Armand
Long, Jennifer
Hilmi, Mohd Radzi
Color vision and the railways: Part 1. The railway LED lantern test
description Purpose. Lantern tests and practical tests are often used in the assessment of prospective railway employees. The lantern tests rarely embody the actual colors used in signaling on the railways. Practical tests have a number of problems, most notably consistency of application and practicability. This work was carried out to provide the Railway LED Lantern Test (RLLT) as a validated method of assessing the color vision of railway workers. Methods. The RLLT, a simulated practical test using the same LEDs (light-emitting diodes) as are used in modern railway signals, was developed. It was tested on 46 color visionYnormal (CVN) and 37 color visionYdeficient (CVD) subjects. A modified prototype was then tested on 106 CVN subjects. Results. All 106 CVN subjects and most mildly affected CVD subjects passed the modified lantern at 3 m. At 6 m, 1 of the 106 normal color vision subjects failed by missing a single red light. All the CVD subjects failed. The RLLT carried out at 3 m allowed mildly affected CVD subjects to pass and demonstrate adequate color vision for the less demanding railway tasks. Carried out at 6 m, it essentially reinforced normal color vision as the standard. Conclusions. TheRLLTisasimplyadministeredtestthathasadirectlinktotheactualvisualtaskoftherailworker.TheRLLT lantern has been adopted as an approved test in the Australian National Standard for Health Assessment of Rail Safety Workers in place of a practical test. It has the potential to be a valid part of any railway color vision standard.
format Article
author Dain, Stephen J
Casolin, Armand
Long, Jennifer
Hilmi, Mohd Radzi
author_facet Dain, Stephen J
Casolin, Armand
Long, Jennifer
Hilmi, Mohd Radzi
author_sort Dain, Stephen J
title Color vision and the railways: Part 1. The railway LED lantern test
title_short Color vision and the railways: Part 1. The railway LED lantern test
title_full Color vision and the railways: Part 1. The railway LED lantern test
title_fullStr Color vision and the railways: Part 1. The railway LED lantern test
title_full_unstemmed Color vision and the railways: Part 1. The railway LED lantern test
title_sort color vision and the railways: part 1. the railway led lantern test
publisher Wolters Kluwer Health
publishDate 2015
url http://irep.iium.edu.my/72276/1/Color_Vision_and_the_Railways__Part_1__The_Railway.5.pdf
http://irep.iium.edu.my/72276/
https://journals.lww.com/optvissci/Fulltext/2015/02000/Color_Vision_and_the_Railways__Part_1__The_Railway.5.aspx
_version_ 1643620114638045184
score 13.211869

Similar Items