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I L L U M I N A T I O N
focused beam of light across the entire depth of the visual field. "Illumination is
critical. If you can't see, you can't effectively operate," says University of
Kentucky otolaryngologist Sanford Archer, MD, FACS, FAAOA.
Is brightness always better?
Many factors determine how well a headlight illuminates the field, not the least
of which is precision, the ability for surgeons to control the light's brightness
and beam, to deliver brighter light where they need it: at the center of the spot,
not the edges.
But there's more to consider than just brightness. Brighter is not always better, says Dr. Archer. Operating with too bright a light, he says, is like taking a
photograph with too great a flash. "Everything gets whited out and all the hues
blend into one another so that it's hard to differentiate," he says.
The light should be focused and not create glare, which can make it hard to
see the color and topography of tissue. To avoid
Coaxial Flexibility
creating shadows, the
Adjustable Aperture
luminaire should be positioned coaxially with the
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Homogenous
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Interchangeable Color Filters
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should be able to draw
an imaginary line directly
in front of the bridge of
the nose that bisects the
lighting unit and the
pupils as the surgeon
looks down during surgery.
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3 2
surgeon's vision. You
Who's the
surgeon?
The illumination needs
O U T PAT I E N T S U R G E R Y M A G A Z I N E O N L I N E | J A N U A R Y 2014
