Interim Report of the JHPS Expert Committee on Radiation Protection of the Lens of the Eye (I)

-Overview of the Lens, Radiogenic Cataract, and Equivalent Dose Limit for the Lens Newly Recommended by the ICRP-

Abstract

In April 2011, the International Commission on Radiological Protection (ICRP) issued the statement on tissue reactions. This stimulated interest in many countries. The Expert Committee on Radiation Protection of the Lens of the Eye was established in the Japanese Health Physics Society, and in April 2013, started discussion about the international developments and recent studies related to the dosimetry of the lens of the eye. This committee now publishes the interim report consisting of parts I-VI. Of these, this Part I overviews the structure of the eye and lens, cataract types and the scientific evidence of its new dose threshold and equivalent dose limit newly recommended by the ICRP.