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Applied Optics

Applied Optics


  • Vol. 43, Iss. 8 — Mar. 10, 2004
  • pp: 1643–1647

Study of the effect of involuntary user movement on the potential light hazards from some ophthalmic instruments

Robert Landry, Michael Wolffe, Clive Burrows, Bernhard Rassow, and Gordon Byrnes  »View Author Affiliations

Applied Optics, Vol. 43, Issue 8, pp. 1643-1647 (2004)

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A study was undertaken to determine whether involuntary user movement provides a basis for relaxing the measurement conditions for evaluating the potential optical radiation hazards to the eye from slit lamps and indirect ophthalmoscopes. This was accomplished by assessment of the extent to which light from these devices can be maintained in focus on a 1-mm-diameter fiber-optic cable for 45 s. The results suggest that, although involuntary user movements can be significant, they do not provide a basis for relaxing the measurement conditions for evaluating the potential optical radiation hazards to the cornea and lens from slit lamps and indirect ophthalmoscopes.

© 2004 Optical Society of America

OCIS Codes
(120.3890) Instrumentation, measurement, and metrology : Medical optics instrumentation
(120.4800) Instrumentation, measurement, and metrology : Optical standards and testing
(120.5630) Instrumentation, measurement, and metrology : Radiometry
(170.4460) Medical optics and biotechnology : Ophthalmic optics and devices
(170.4470) Medical optics and biotechnology : Ophthalmology

Original Manuscript: July 23, 2003
Revised Manuscript: November 19, 2003
Published: March 10, 2004

Robert Landry, Michael Wolffe, Clive Burrows, Bernhard Rassow, and Gordon Byrnes, "Study of the effect of involuntary user movement on the potential light hazards from some ophthalmic instruments," Appl. Opt. 43, 1643-1647 (2004)

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