0
Letters |

Laser Warning Sign

Jack De Ment, DSc; John P. Jarabak, DDS; Nilkanth M. PHATAK, PhD; Thorn Kinersly, DMD
JAMA. 1964;190(3):253. doi:10.1001/jama.1964.03070160077029.
Text Size: A A A
Published online

ABSTRACT

To the Editor:—  Some 500 groups in the United States—involving as many as several thousand people—now work with lasers.1 Many investigators are apparently unaware of, or scantily appreciate, the energy levels of such devices. However, there is increasing concern about the little-known dangers from acute, and especially chronic, exposure to laser light or coherent radiation,2,3 including visual impairment and laser-induced blindness. The need for knowledge about these hazards applies, in particular, to those personnel outside the biosciences.We propose as an analog of the universally used, recognized, and accepted radioactivity warning sign a standard laser-light warning sign. This is an appropriate and distinctive laser symbol together with the word CAUTION or DANGER above that symbol and the expression LASER LIGHT below the device. The sign is simple and can be of any convenient size. The warning symbol has an arrow representing laser light emitted from a stylized trumpet-like

Topics

Sign In to Access Full Content

Don't have Access?

Register and get free email Table of Contents alerts, saved searches, PowerPoint downloads, CME quizzes, and more

Subscribe for full-text access to content from 1998 forward and a host of useful features

Activate your current subscription (AMA members and current subscribers)

Purchase Online Access to this article for 24 hours

First Page Preview

View Large
/>
First page PDF preview

Figures

Tables

References

CME
Meets CME requirements for:
Browse CME for all U.S. States
Accreditation Information
The American Medical Association is accredited by the Accreditation Council for Continuing Medical Education to provide continuing medical education for physicians. The AMA designates this journal-based CME activity for a maximum of 1 AMA PRA Category 1 CreditTM per course. Physicians should claim only the credit commensurate with the extent of their participation in the activity. Physicians who complete the CME course and score at least 80% correct on the quiz are eligible for AMA PRA Category 1 CreditTM.
Note: You must get at least of the answers correct to pass this quiz.
You have not filled in all the answers to complete this quiz
The following questions were not answered:
Sorry, you have unsuccessfully completed this CME quiz with a score of
The following questions were not answered correctly:
Commitment to Change (optional):
Indicate what change(s) you will implement in your practice, if any, based on this CME course.
Your quiz results:
The filled radio buttons indicate your responses. The preferred responses are highlighted
For CME Course: A Proposed Model for Initial Assessment and Management of Acute Heart Failure Syndromes
Indicate what changes(s) you will implement in your practice, if any, based on this CME course.
NOTE:
Citing articles are presented as examples only. In non-demo SCM6 implementation, integration with CrossRef’s "Cited By" API will populate this tab (http://www.crossref.org/citedby.html).

Multimedia

Some tools below are only available to our subscribers or users with an online account.

Sign In to Access Full Content

Related Content

Customize your page view by dragging & repositioning the boxes below.

Jobs
brightcove.createExperiences();