Safety
What is the zone at which we are at risk for laser radiation under classes 3b & 4 laser usage?
NHZ Nominal Hazard Zone
What describes the amount of attenuation or reduction of radiant laser energy as it passes through the filter material in the laser eyewear
Optical Density (OD)
What does monochromatic mean?
One color, uno single solo color
What does LASER stand for?
Light Amplification by Stimulated Emission of Radiation
how many classes of laser are there?
4, 1, 1M, 2, 2M, 3, 3R, 3B, 4
The person responsible for the _____ _____ of the program at the facility. Authorized to monitor operation,, enforce controls, and oversee hazards associated with laser usage, requires special training
LSO Laser Safety Officer
Which part of the eye is responsible for central vision?
a. retina
b. pupil
c. cornea
d. macula
Macula
What is polychromatic?
Many, muchos, multiple colors (IPL)
What is made up of a multitude of visible and invisible wavelengths of light?
EMS or Electromagnetic Spectrum
what class of laser can burn the skin in addition to potentially devastating and permanently damaging the eye as a result of direct or diffused beam viewing?
Class IV (4)
Which of the following must an LSO do to determine if theoperator may safely perform procedures without putting themselves at an increased risk if injury or exposure?
a. ask the technician to perform a treatment
b. require the tech to be observed by the medical director for 10 hours
c. send the technician for a physical evaluation
d. this is illegal
c. send the technician for a physical evaluation
What are the 3 main safety controls, give me an example of each
Engineering
PPE
Administrative
Light wavelengths are measured this way. one billionth of a ___________
NM Nanometer
TRT Thermal Relaxation Time
True or False: Skin injuries occur more commonly with laser treatments than eye injuries & are generally more serious
FALSE
What can possibly be found in laser plume?
Viruses like HPV, HIV, Rubella, Hep c
Name 2 items of PPE
Gloves, mask
What wavelengths make up the visible spectrum? BONUS: What are two types of wavelengths commonly used in esthetics?
400nm- 800nm
Visible light and Infrared
a collection of electromagnetic rays that may be collimated, convergent, or divergent is called what?
beam
Class 3b & 4 lasers are required to have a key switch and a safety interlock. These are examples of which laser safety control?
Engineering
All eyewear should be clearly labeled with what 2 things?
Wavelength and OD
Which of the following is a type of reflection that results from divergent light and power is lost?
a. specular
b. diffused
c. direct
b. diffused
Which of the following is NOT a factor that determines if a laser can cause injury?
a. wavelength
b. exposure time
c. frequency
d. irradiance
c. frequency
Which of the following class of laser is safe under ALL conditions unless viewed through a magnifying optic?
a. IIM
b. IIIR
c. 1M
d. IV
What is class 1M