The Eyes Have It
Adding OCU-GUARD to dental radiation protocols can increase protection
Lou Shuman, DMD, CAGS
While getting a comprehensive series of x-rays and scans during a recent dental visit, I noticed how close the imaging devices were to my eyes, particularly during anterior imaging sequences. Panoramic imaging radiation dose can be higher than other forms of radiography, and in some cases, if it is necessary for the beam to include the eyes in the FOV (field of view), eyes can become inadvertently and needlessly irradiated. Ocular tissues are more vulnerable to radiation, especially in pediatric patients. After meeting Steven Maiman, founder and CEO of OCU-GUARD, I am more aware of the importance of incorporating meticulously designed eye protection into dental radiation protocols. This novel and effective eye shield can substantially reduce radiation exposure to the eyes (Figure 1).
There is a wealth of compelling scientific evidence for safeguarding the eyes against even minimal doses of radiation. One study, called "Absorbed dose to the eye lens during dental radiography," in Oral Radiology, noted, "Radiographic techniques are frequently used in dental practice. However, these inspection procedures involve radiation exposure to the eye lens, which has relatively high radiosensitivity. … It is important to avoid inclusion of the eye lens in the direct irradiation field and to make full use of photographic techniques that reduce the absorbed dose."1 The book Radiation Protection in Medical Radiography,by Sherer, et al, said that while exposure to the eye from dental radiography is quite small, it should be avoided when possible during radiographic examinations. This especially pertains to pediatric patients. The younger the individual, the more pronounced the effects.2
It is unnerving to realize that the unique cells of the eyes are extremely radiosensitive, and, unlike many cells in the human body, once irradiated they will not regenerate. Early onset of cataracts is the most cited effect of radiation to the eyes. As healthcare professionals, we can prioritize the welfare of our patients' eyes by looking for convenient but efficient ways to prevent this potential problem.
"When kids start their dentistry early, or get orthodontic treatment and keep getting x-rays, all of that radiation accumulates," Maiman says. "As we get older, we become more susceptible to developing cataracts, regardless of whether we've gone to the dentist or not. But getting x-rays to the eyes over the years can contribute to an early onset of cataracts. The solution is to cover the eyes during radiography."
There are some patients who reject the idea of being exposed to x-rays. When they see that your practice is using OCU-GUARD, they will realize that you are invested in new developments in radiation safety. It can be explained that while the practice's x-rays are already low dosage, you have added this protective measure to further reduce any potential x-ray exposure and ensure that the patient's well-being is a top priority.
OCU-GUARD, which is made in the United States, is a unique and exclusive patient protective device that minimizes radiation dose to patients' eyes during dental x-ray examinations. It is effective, easy to use, reusable, low in cost, and does not interfere with diagnostic imaging. The flexible shielding on the eye guard is composed of finely divided, specially graded pure lead particles, fully encapsulated within a durable vinyl matrix. With a lead content equivalent to protective aprons, radiation attenuation is greater than 93%.3 The lead metal particles are firmly bound within the vinyl structure, preventing absorption from the product to the skin.
The OCU-GUARD core leaded material passes the three most universally recognized testing procedures for radiation products: ASTM (U.S. standard), IEC 61331-1 (widely used throughout the world), and DIN6857-1 (German standard, considered to be the strictest in the world). Maiman explains that the core flexible leaded material is impervious to deterioration, regardless of how many times the guard is used. The vinyl-skinned surface is comfortable, protects from degradation, and, aside from routine cleaning with standard disinfectant wipes, is maintenance-free. Each shield is guaranteed to last a minimum of 500 complete exams, making the cost per exam under 10 cents.
With more dentists taking a holistic approach to patient care, adding eye protection to the imaging process is a sensible precaution for both the doctor and the patient. OCU-GUARD is a low-cost way to put your mind at ease, comply with ALARA guidance as best you can, and show your patients that their safety and well-being are a priority.
References
1. Kanzaki T, Takahash Y, Yarita K. Absorbed dose to the eye during dental radiography. Oral Radiology. 2017;33:246-250.
2. Sherer M, et al. Radiation Protection in Medical Radiography. 9th ed. St Louis: Elsevier; 2022:166-167, 232.
3. Data on file.
