By following some basic practices and using the Zero-Gravity, the radiation dose to the head and eyes of a busy interventionalist was only 8% above natural background. The manuscript also provides some brief information on how to maximally protect the head and eyes by adjusting the settings on the Zero-Gravity to best advantage.
Occupational Eye Lens Radiation Dose While Performing Interventional Procedures over 18 Months Using a Face-Shield Equipped Suspended Radiation Protection System. Kwarcinski et al. https://www.scirp.org/journal/paperinformation.aspx?paperid=100983