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234 results for “eye lens dose limit”.
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FAQ
Why is the international eye lens dose limit lower than the US limit?
The ICRP reduced its recommended eye lens dose limit from 150 mSv to 20 mSv per year in 2011 based on new evidence that cataracts develop at lower doses than previously thought. The US has not updated…
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FAQ
Why is the US eye lens dose limit higher than international standards?
The US eye lens limit of 150 mSv/year is based on outdated science from before evidence showed cataracts occurring at lower doses. The ICRP reduced its recommendation to 20 mSv/year in 2011, but US…
orsif.org/faqs
FAQ
Has any US state adopted the international 20 mSv eye lens dose limit?
…in November 2026, found that no state has adopted the eye lens limit of 20 millisieverts (mSv) a year recommended by the International Commission on Radiological Protection (ICRP). Of the 50 states…
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Research topic
Eye lens and cataracts: research summaries
Radiation and the lens of the eye: cataract risk, dose limits and eye protection.
orsif.org/research/topic/lens-cataract
FAQ
Can a chest dosimeter stand in for an eye lens dosimeter?
…a 2026 study of 41 physicians wearing dosimeters near the eye and on the chest above the apron, chest-based estimates tracked lens dose in cardiac catheterization and electrophysiology procedures. In…
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Research summary
NCRP Commentary 26 - Guidance on Radiation Dose Limits for Lens of Eye
…(NCRP) recommends cutting the US annual occupational lens dose limit from 150 mSv to 50 mGy, citing cataract risk at lower doses than once thought, and calls eye protection a necessity for the…
orsif.org/research/ncrp-commentary-26-guidance-on-radiation-dose-limits-for-lens-of-eye
Research summary
Assessment of occupational radiation doses to eye lens during interventional radiology procedures
…Pakistani interventional radiology suite, estimated annual eye lens doses were 14.1 mSv for the interventional radiologist and 9.2 mSv for the technologist, below the 20 mSv limit but close enough…
orsif.org/research/assessment-of-occupational-radiation-doses-to-eye-lens-during-interventional
Research summary
Occupational Exposure of the Eye Lens in Interventional Procedures: How to Assess and Manage Radiation Dose
This review of eye lens dose in interventional work recommends dedicated lens dosimeters where feasible, and well-fitting lead glasses with side coverage and/or ceiling-suspended screens for the…
orsif.org/research/occupational-exposure-of-the-eye-lens-in-interventional-procedures-how-to-assess
Research summary
Eye Lens Radiation Dose to Nurses during Cardiac Interventional Radiology: An Initial Study
In six cardiac cath lab nurses in Japan, eye lens doses reached up to about 9 mSv per year without lead glasses. Neck badges and patient dose metrics correlated with eye dose but imprecisely, so…
orsif.org/research/eye-lens-radiation-dose-to-nurses-during-cardiac-interventional-radiology-an
Research summary
Eye lens dose of medical personnel involved in fluoroscopy and interventional procedures at a Malaysian Hospital
At one Malaysian hospital, eye lens doses measured near the eye in 41 fluoroscopy staff varied widely; primary operators and their left eye received the most, and kerma-area product (KAP) or…
orsif.org/research/eye-lens-dose-of-medical-personnel-involved-in-fluoroscopy-and-interventional
Research summary
Eye lens dose in interventional cardiology personnel in Vietnam: direct Hp(3) measurement, indirect method comparison, and fluoroscopy-time-based dose estimation
In 12 cath lab staff in Vietnam, projected annual eye lens doses for physicians reached up to 19.10 mSv, near the 20 mSv limit, and five physicians exceeded a 6 mSv investigation level. An indirect…
orsif.org/research/eye-lens-dose-in-interventional-cardiology-personnel-in-vietnam-direct-hp-3
Research summary
Eye lens dose correlations with personal dose equivalent and patient exposure in paediatric interventional cardiology performed with a fluoroscopic biplane system
Limits: Only two cardiologists at a single facility over one year, with frequent non-use of the ceiling shield, so the apron-to-eye ratio may not apply where shielding is used. Eye dose was estimated…
orsif.org/research/eye-lens-dose-correlations-with-personal-dose-equivalent-and-patient-exposure-in
Research summary
Real-time evaluation of operator eye lens radiation dose in interventional radiology: Effects of protective shield position and X-ray beam angle
Limits: Abstract only; number of procedures and physicians, country and absolute dose values are not reported. Correlational dosimetry data near the eye, not lens dose under eyewear or health…
orsif.org/research/real-time-evaluation-of-operator-eye-lens-radiation-dose-in-interventional
Research summary
The influence of operator position, height and body orientation on eye lens dose in interventional radiology and cardiology: Monte Carlo simulations versus realistic clinical measurements
Placing the image screen away from the X-ray source significantly reduces eye lens dose.
orsif.org/research/the-influence-of-operator-position-height-and-body-orientation-on-eye-lens-dose
Research summary
Development of radioprotective side shield attached to radioprotective glasses for reducing eye lens dose of endoscopists during endoscopic retrograde cholangiopancreatography: a phantom study
…light side shield clipped onto radioprotective glasses cut eye lens air kerma by roughly 40-90% compared with glasses alone. This is a dosimetry result; real-world comfort and use by endoscopists were…
orsif.org/research/development-of-radioprotective-side-shield-attached-to-radioprotective-glasses
Research summary
Eye lens exposure to medical staff during endoscopic retrograde cholangiopancreatography
Without eye protection, estimated annual eye lens doses to the performing gastroenterologist and the anesthesiologist can exceed the 20 mSv annual limit. (20 mSv per year)
orsif.org/research/eye-lens-exposure-to-medical-staff-during-endoscopic-retrograde
Research summary
Radiation exposure to eye lens and operator hands during endovascular procedures in hybrid operating rooms
…procedures in hybrid operating rooms, vascular surgeons' eye and finger doses tracked the patient dose-area product, allowing an estimate of the workload at which eye dose would reach the 20 mSv/year…
orsif.org/research/radiation-exposure-to-eye-lens-and-operator-hands-during-endovascular-procedures
Research summary
Radiation eye dose to medical staff during respiratory endoscopy under X-ray fluoroscopy
…performing fluoroscopically guided bronchoscopy received eye doses that in three of eight cases would exceed the 20 mSv/year lens limit; nurses received less. Neck badges tended to underestimate eye…
orsif.org/research/radiation-eye-dose-to-medical-staff-during-respiratory-endoscopy-under-x-ray
Research summary
Direct and indirect assessment: comparison of different methods to estimate staff equivalent dose to the lens during different interventional procedures
…gave reasonable and mostly conservative estimates of eye lens dose in cardiac and electrophysiology procedures. They often underestimated lens dose in endoscopic retrograde cholangiopancreatography…
orsif.org/research/direct-and-indirect-assessment-comparison-of-different-methods-to-estimate-staff
Research summary
Occupational radiation doses to the extremities and the eyes in interventional radiology and cardiology procedures
Estimated annual doses did not exceed extremity or eye lens limits, but limits could be exceeded with poor practice or improper use of protective tools.
orsif.org/research/occupational-radiation-doses-to-the-extremities-and-the-eyes-in-interventional
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