I see no reason to require eye wear in the p[resence of an operating
ophthalmic excimer laser system.
trokel
On Mon, 4 Mar 2002, Harry Moseley wrote:
> I haven't seen any data on reflection of the excimer laser radiation
> from the cornea. I don't expect it is very great but it would be
> interesting to know if there is any information out there. There is
> also the matter of attenuation in air at 190 nm which helps to
> reduce the risk. Again, firm data is hard to come by. As regards,
> use of protective eyewear, I would generally advise all staff to use
> protective eyewear when the LASIK laser is in operation. The
> eyewear is widely available and easy to use, reasonably
> comfortable and does not interfere with working efficiency. Although
> you could mount a case to show that it may not be strictly
> necessary, it might be more difficult to persuade a court.
>
> My advice is that goggles are cheaper than lawyers!
>
> What do others think about this?
>
> Regards,
> Harry Moseley
>
> Date sent: Tue, 26 Feb 2002 16:49:05 +0000
> Send reply to: British Medical Laser Association <[log in to unmask]>
> From: Paddy Gilligan <[log in to unmask]>
> Subject: Safety and Lasik lasers
> To: [log in to unmask]
>
> > Hi does any one have a reflection coefficient of the eye or ref to one at
> > 190nm for an argon fluoride excimerlaser.
> >
> > we are currently trying to draw up safety guidelines as whether nurses need
> > to wear glasses in the vicinity of an excimer laser. The current common
> > practice seems to be that nurses do not wear safety glasses in the
> > vicinity of these lasers.
> >
> > I have assumed the eye is a diffuse albedo surface for these calculations.
> > Using 10% reflection I can get away with the nurse not wearing goggles for
> > certain treatments.
> >
> > Does any one else have experience of protection for such scenarios
> >
> > regards
> >
> > Paddy Gilligan
> >
> > Mater Private Hospital Dublin
>
>
> Dr Harry Moseley
> Consultant Medical Physicist
> The Photobiology Unit
> University of Dundee
> Ninewells Hospital & Medical School
> Dundee DD1 9SY
> United Kingdom
>
> Tel. (0)1382 632240
> Fax. (0)1382 646047
>
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