The maximum permissible exposure levels for laser radiation are presented in Table VII. TABLE VII MAXIMUM PERMISSIBLE EXPOSURE LEVELS FOR LASER RADIATION AT THE CORNEA FOR DIRECT ILLUMINATION OR SPECULAR REFLECTION AT WAVELENGTH = 6943 A Q-SWITCHED PULSE 1 nsec.-1 usec. P.R.F. < 10 (j/cm2) NON-Q- SWITCHED PULSE 1 usec.- 0.1 sec. P.R.F. < 10 (j/cm2) CONTINUOUS WAVE EXPOSURES >0.1 sec. (W/cm2) Lighting Conditions Daylight5.0 x 10-85.0 x 10-75.0 x 10-53 mm pupil Laboratory2.0 x 10-82.0 x 10-72.0 x 10-55 mm pupil Night1.0 x 10-81.0 x 10-71.0 x 10-57 mm pupil

(Eff. 9/16/71, Register 39)