Monte Carlo simulation of eye lens dose reduction from CT scan using organ based tube current modulation

The lens is sensitive to ionizing radiation but cancer due to radiation is rare, so when the International Commission on Radiological Protection (ICRP) defines thresholds for radiation for the eye, the lens is excluded [1]. High-dose ionizing radiation is thought to increase the risk of cataracts [2,3], but only when reaching a particular threshold of 0.5 –2.0 Gy for a single brief exposure or 5.0 Gy for highly fractionated or protracted exposures [1]. Studies show that threshold doses were less than 1.0 Gy for detectable opacities [4,5].
Source: Physica Medica: European Journal of Medical Physics - Category: General Medicine Authors: Tags: Review paper Source Type: research