LightLas 532 – Operator's Manual Rev. No 01 Page 90 of 115
6.2 General Warnings
Doctors should ensure they have extended training before attempting to carry
out any of the indicated procedures. Doctors will take full responsibility for the
setting of the Laser unit operating characteristics, techniques and methods used
during treatment. They must use their own clinical judgment in determining all
aspects of the treatment carried out.
For all type of Delivery units always ensure that the power levels are not set too
high at initially.
Always set the power levels according to the tissue effects. Remember that
highly vascularized and pigmented tissue will require less power than lightly
pigmented.
The Aiming beam and Green laser beams are coaxial and if there is any distortion
to one of them then the other may also be distorted and this can lead to
inconsistent tissue effects and clinically unsatisfactory results.
By reducing the spot size by half will increase the power density by a factor of
four so be very careful not to deliver too much power to the site.
If the delivery of the Laser does not produce satisfactory tissue effect then
increase the pulse duration first then the power level. The aim is to produce a
grey-white burn.
Any assistant personnel in the treatment room should always wear appropriate
laser safety glasses suitable for the 532nm wavelength laser while the Laser unit
is in use.
Outside the treatment room should be placed Laser warning signs or any
appropriate warning signs for the country the Laser is being used in. Generally
the warning signs should state minimum as: “Danger/ Caution Laser Radiation,
avoid eye or skin exposure to direct or scattered laser radiation.”
The laser can coagulate blood vessels up to 1.5mm in diameter. For larger
diameter vessels coagulation may be difficult so other means such as
electrocautery may be needed.
When treating a patient’s eye, ensure that untreated eye should cover with
protective shield from the unwanted laser reflection that can lead to irreversible
eye damage.
Avoid directly firing the Laser onto the flammable liquids or gases
Avoid any wet condition near console or footswitch although footswitch is rated
IPX8 but still not recommend use in the wet condition to avoid the electrical
hazards.
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