The Risk of Radiation Exposure to the Eyes of the Interventional Pain Physician

Table 2

ICRP threshold dose values compared to observed opacities and cataracts [5, 13].

		ICRP	Observed cases
Detectable opacities	SI unit	0.5–2.0 Sv	<1 Sv
	Conventional unit	50–200 REM	<100 REM
Visual impairment (cataract)	SI unit	5 Sv	<1 Sv
	Conventional unit	500 REM	<100 REM