Abstract
In 2018, the International Radiation Protection Association (IRPA) established its third task group (TG) on the implementation of the eye lens dose limit. To contribute to sharing experience and raising awareness within the radiation protection community about protection of workers in exposure of the lens of the eye, the TG conducted a questionnaire survey and analysed the responses. This paper provides an overview of the results of the questionnaire.
Highlights
The International Commission on Radiological Protection (ICRP) published a Statement on Tissue Reactions in April 2011 with a recommendation that the occupational equivalent dose limit for the lens of the eye be revised (ICRP 2012)
The International Radiation Protection Association (IRPA) established a task group (TG) in 2012 to identify key issues in the implementation of the new eye lens dose limit, and a first survey was launched to provide an international view of IRPA professionals on the impact of the reduction in dose limit for the eye lens in occupational exposure proposed by ICRP (Broughton et al 2013, 2015a, 2015b) addressing the implications both for dosimetry and methods of protection
The questionnaire, as a tool to structure the responses based on 27 questions, is not limited to any specific area of radiation practice, and was developed to address four principal topics: (i) the implications for monitoring and assessing lens dose and the interpretation of the results; (ii) the implications related to the methods of protection being considered by different sectors such as medical, nuclear, and industrial applications, and the different personnel involved; (iii) the direct or indirect impact on current practices, in relation to the implementation of the revised limit in the sectors of interest; and (iv) the legislative processes being enacted or considered in relation to the dose limit for the lens, and guidelines or documents addressing eye lens monitoring
Summary
The International Commission on Radiological Protection (ICRP) published a Statement on Tissue Reactions in April 2011 with a recommendation that the occupational equivalent dose limit for the lens of the eye be revised (ICRP 2012). This was based on a threshold of 0.5 Gy for induction of vision impairing cataracts in the lens. IRPA published guidance on implementation of eye monitoring and eye protection for workers (IRPA 2017), to provide practical recommendations about when and how eye lens dose should be monitored and on use of protective devices related to exposure levels. We provide a summary of results from the latest questionnaire
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