Definitions for "Maximum permissible exposure"
is the level of laser radiation to which a person may be exposed without hazardous effect on or adverse biological changes in the eye or skin. The ocular fundus is the back of the eye. The ocular fundus may be seen through the pupil by use of an ophthalmoscope.
The rms and peak electric and magnetic field strengths, their squares, or the plane-wave equivalent power densities associated with these fields and the induced and contact currents to which a person may be exposed without harmful effect and with an acceptable safety factor.
the maximum level of laser radiation to which a human can be exposed without adverse biological effects to the eye or skin