Paul
Signs
There is no agreed signage for IPLs' except the generic ones that you
mention.
Protective eyewear
The bandwidths of the light produced are fairly wide and the lower end
is variable through
a choice of filters.
You may have an output between 400 to 1200 nm.
Output radiances are quoted as between 2 and 100 joules/cm2/steradian.
There is no reason why the patients' eyes should not be protected by
totally opaque [to these wavelengths] glasses. A bit over the
top but errs on the safe side.
The operators tend to get quite close to the applicator when in use and
will experience flashback off the skin and possible
directed viewing of the applicator through accidental firing.
The skin flashback has been reported as making operators eyes very
tired at the end of a session but with such a large source size the
retinal image will be fairly large and retinal irradiance low.
Direct viewing of the applicator when it is being fired may present a
problem both to the corneal structures and the retina. A pair of glasses
with an OD of between 1 and 2 across the wavelengths will probably
reduce any light damage hazard to an acceptable level.
Any thoughts anyone else?
Kind regards
Bill Davies
>>> [log in to unmask] 12/06/02 11:18am >>>
Are there any standards that relate to the protective eyewear supplied
for
use with Intense Pulse Light machines?
Is smoke evacuation used or should it be considered ?
Does anyone know of a supplier of specific signage relating to the use
of
this equipment apart form the blue/white BS protective eyewear signs?
I would be grateful for any advice
Paul N Brown
Principal Medical Physicist
Dept. Medical Physics
Frenchay Hospital
Bristol BS16 1LE
United Kingdom
Tel. 0117 9701212x2579
Fax 0117 9753832, Pager/SMS 07699738184
(SMS = http://www.paging.vodafone.net)
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