What is FluoroSafety?

Identifying Important Risks Associated with FGI

In 1994 the FDA released a public health advisory warning of the potential for serious radiation-induced skin injuries to patients resulting from fluoroscopically guided interventions (FGI).  In the 20 years since this advisory, there have been hundreds of published cases of skin injury resulting from FGI, and the number is steadily increasing even today.  As the scope of disease that can be diagnosed and treated using FGI increases, so does the complexity of these procedures and the radiation doses to patients, physicians, and staff.  While these procedures provide an incredible benefit to the patient compared to open-surgical alternatives, there are important risks that must be understood by the performing physician.

The Need for Effective Training

In 2010, frustrated by the lack of user-friendly, accessible, and effective training focused on this topic, two diagnostic medical physicists started Fluoroscopic Safety, LLC [http://www.fluorosafety.com]. Understanding the need for a balanced perspective and considering that radiation is not the only risk from FGI, they collaborated with an experienced board certified interventional radiologist well-known for his work in quality improvement.  Because of the multi-disciplinary M.D. and Ph.D. backgrounds of the authors of FluoroSafety courses, we understand that when a physician is performing an FGI, managing radiation dose is not the first thing on his mind.  Instead, practitioners are thinking about the patient-specific technical challenges associated with these procedures.  The training programs from FluoroSafety are developed with this in mind.  While our courses do provide instruction on the fundamental physics of fluoroscopy and radiation biology, we focus on simple methods for managing patient and staff radiation dose.  Using videos and animations, our courses provide an easy to remember and easy to execute set of practices which benefit both the physician and their patients.  This is one of the key features of our courses, designed by physicians and physicists together.

Fluoro CME Training and Education

The educational programs from FluoroSafety also help providers satisfy state regulatory requirements. Through a joint sponsorship with The University of Texas MD Anderson Cancer Center, our courses have been approved for up to 10.5 hours of AMA PRA Category 1 CreditTM.   Our programs meet the training requirements for practitioners who use fluoroscopy in Oregon, California, and Texas.  In addition, board certified providers who complete these courses are eligible to claim self assessment CME (SA-CME), as required for Maintenance of Certification (MOC) by members of the American Board of Medical Specialties (ABMS).

Interactive and Engaging Content

The educational programs from FluoroSafety are tailored to the needs of busy healthcare professionals and feature on-demand Flash-based learning rich in animations and videos.  Our courses also feature optional narration.  Course content can be accessed at the convenience of the physician from any computer, smartphone, or tablet with Internet access.

Meet State Requirements

Whether you are trying to meet state regulatory requirements or are simply interested in improving the care you provide to your patients, FluoroSafety has a course for you.  The most common feedback we have received from physicians who have taken our course is that they were surprised by how much they didn’t know about the safe use of fluoroscopy—you may be surprised too!

FluoroSafety.com

A. Kyle Jones, PhD

Alexander S. Pasciak, PhD

Joseph Steele, MD

Fluoroscopic Safety, LLC

Discover Gucci Radiation Resistant Glasses

Are you fashion savvy?

Have you been searching for a fashionable way to protect your eyes from the harmful effects of ionizing radiation?

Then look no further.

Gucci radiation resistant glasses have arrived. Gucci, a name synonymous with high-fashion and stylish sophistication is the latest addition to our radiation protection eyewear line.

Gucci’s styles for women range from the lightweight nylon frames of the Gucci GG 3547/S, to the bold, full-rimmed frame of the Gucci GG 3574/S.

For men, available styles include the classic Gucci GG1000/S full-rimmed acetate frame and the GG 1856/S ultra-sleek wrap frame.

Radiation resistant glasses never looked so good.

Women’s Radiation Resistant Glasses

Gucci GG 3547/S

The Gucci GG 3547/S (shown above) frames are made of lightweight, durable blended nylon for added comfort and flexibility. Unlike the brittle nylon eyeglass frames of the late 1940s, blended nylon frames are more resistant to breakage and are inherently stronger than their predecessor. Consequently, blended nylon frames are ideal for those looking for a high-quality, durable, and resilient frame.

The round shape of these frames subtly draws attention to the eyes and are well-suited for those with diamond-shaped faces. The ‘simultaneous contrast’ of the red and green temples, juxtaposing complementary colors, creates a stunning visual effect. The decorative, high-set temples are emblazoned with the iconic Gucci label (white lettering) on a bold red background. For those who have been seeking a distinctive and sophisticated pair of radiation resistant glasses, your journey finally may be nearing its end.

 

Gucci GG 3574/S

The epitome of Italian luxury, the Gucci GG 3574/S rectangular frame is bold and distinctive. The hypoallergenic black optyl frame is specially coated to resist sweat and cosmetics. These Gucci radiation resistant glasses seamlessly blend fashion, elegance, and sophistication into an integral piece of personal radiation protective equipment. A trendy frame for those who are unwilling to sacrifice style but understand the importance of properly protecting their eyes from the harmful effects of ionizing radiation.

Have you been searching for radiation eye protection that is functional, yet fashionable?

Your search is over.

These Gucci radiation resistant frames are the answer.

Offering the industry standard 0.75mm lead equivalency, the SCHOTT radiation resistant safety glass lenses will protect your eyes from the harmful effects of ionizing radiation.

According to the IAEA (International Atomic Energy Agency), “Many years or decades could pass before radiation-induced eye lens injuries become apparent. At relatively high exposures of a few Gy* , lens opacities may occur after many years¹.”

Ensure that your eyes are properly protected by wearing the appropriate radiation resistant glasses. In a 2010 study, Comparing Strategies For Operator Eye Protection In The Interventional Radiography Suite, “The use of leaded glasses alone reduced the lens dose rate by a factor of 5 to 10.” Reduce your risk of developing cataracts, while staying fashionable and safe with Gucci radiation resistant glasses.

Sources:

Thornton RH, Dauer LT, Altamirano JP, Alvardo KJ, St Germain J, Solomon SB. (2010) Comparing Strategies For Operator Eye Protection In The Interventional Radiography Suite.

http://www.ncbi.nlm.nih.gov/pubmed/20920841

IAEA | Radiation Protection of Patients (RPOP) Radiation and cataract: Staff protection

http://rpop.iaea.org/RPOP/RPoP/Content/InformationFor/HealthProfessionals/6_OtherClinicalSpecialities/radiation-cataract/Radiation-and_cataract.htm

Gray (Unit)

Wiki: http://en.wikipedia.org/wiki/Gray_(unit)

*Gy = Gray, is a derived unit of ionizing radiation dose in the International System of Units (SI). It is a measure of the absorbed dose and is defined and is defined as the absorption of one joule of radiation energy by one kilogram of matter (0.01 Gy is equivalent to 1 rad).

3 Different Types Of Prescription Lead Glasses

For those who wear corrective lenses and need to protect their eyes from radiation, we offer three different prescription lens types for our lead glasses. After reading this post you will understand the different types of prescription lens types that we offer, eyeglass prescription terminology, and what prescription information is needed to properly place your order.

Before placing your order, it is important for you to understand the differences between the various corrective lenses before making your decision. Lead glasses provide you with the necessary eye protection to help reduce your risk of developing cataracts from prolonged exposure to ionizing radiation. In the past, those who wore corrective lenses would often be required to wear bulky radiation safety goggles or fit over lead glasses. However, a number of the lead glasses that we now offer are available with various types of prescription lens.

Prescription lens types:

  • Single vision prescription lenses
  • Lined bifocal prescription lenses
  • Progressive bifocal lenses

Single Vision

Single vision prescription lenses have the same magnification throughout and correct for only one distance. These lenses are designed to correct conditions such as myopia (nearsightedness¹), hyperopia (farsightedness), and astigmatism². Our single vision prescription radiation safety lenses offer the industry standard 0.75mm lead equivalency and are manufactured using SCHOTT SF-6 HT radiation resistant glass.

How do I know if I have a single vision prescription?

To illustrate, an example of a single vision prescription is shown below. While reviewing the sample prescription, you may notice several abbreviations, listed below are common terms found on eyeglass prescriptions. If your prescription doesn’t have any values or abbreviations in the ADD column, you have a single vision prescription.

 Single Vision Prescription Lenses
RxSPHERICALCYLINDRICALAXIS
O.D.-2.00-0.5040
O.S.-1.75
Pupillary Distance65

Prescription Abbreviations & Terminology 

  • OD – Oculus Dexter, from the Latin word dexter meaning “right”, means the right eye.
  • OS – Oculus Sinister, sinister which is derived from the Latin word sinistra meaning “left hand”, means the left eye.
  • SPH – Spherical, is the main strength of the lens prescription, and is written in 0.25 increments. It is also referred to as power and is abbreviated as PWR.
  • CYL – Cylinder, this will only appear on your prescription if you have an astigmatism, and is written in 0.25 increments. It is possible that this will only apply to one eye. If you don’t have an astigmatism, your doctor may leave this field blank, or they may choose to put ‘00’, ‘DS’, SPH’, or ‘Plano’ in this field. If the field has one of those abbreviations you will know that you don’t have an astigmatism correction in one or both eyes.
  • AX – Axis can be abbreviated as AX, or simply X. If the cylinder field is left blank or has any of the following abbreviations including ‘00’, ‘DS’, SPH’, or ‘Plano’, this field will be left blank or have an ‘0’.
  • PD – Pupillary distance or interpupillary distance (IPD) is the distance (industry standard is in millimeters) between your right pupil and left pupil. The PD is usually written in the lower row labeled P.D. on your prescription.

Single-Vision Pupillary Distance

  • Binocular P.D. – 65
  • Monocular P.D. – 30/30.5  (OS/OD)

Bifocal/Progressive Pupillary Distance Binocular

  • Near/Reading P.D. – 62
  • Distance P.D. – 65

The American Optometric Association states that Astigmatism is a vision condition that causes blurred vision due either to the irregular shape of the cornea, the clear front cover of the eye, or in other cases the curvature of the lens inside the eye. Astigmatism is a particularly common vision condition.

Lined Bifocal

Bifocal prescriptions are for patients who have difficulty seeing both far and near. They are commonly prescribed to individuals with presbyopia who also require a correction for myopia, hyperopia, and/or astigmatism. As their name suggests, lined bifocals offer distance correction on the upper portion of the lens, and near vision correction on the bottom portion of the lens. Lined bifocal lenses, provide two distinct optical powers with different focal lengths – one for distant vision and one for near vision. The near vision lens has a semicircle (bottom) that measures 28mm wide and has a flat-top (top). Traditional lined bifocal lenses are separated by a visible line.

Progressive Bifocal

Progressive bifocals, or simply progressive lenses, allow you to experience bifocal vision without the traditional bifocal lines. Progressive lenses provide you with a more natural way of seeing. Presbyopia³ is a common vision condition for those over the age of 40 where the eye has difficulty focusing on near-field objects. Individuals who have worn traditional bifocals in the past may have experienced “image jump”, this occurs when there is an abrupt break from distance to near-field vision. Progressive bifocal lenses provide  you with optimum vision and a seamless progression of lens strength.

How do I know if I have a bifocal prescription?

If you notice that there are numbers in the ADD column of your prescription, you have a bifocal prescription.

 Lined Bifocal/Progressive Bifocal Prescription Lenses
RxSPHERICALCYLINDRICALAXISADD
O.D.-2.00-0.5040+1.75
O.S.-1.75+2.00 PAL
Pupillary Distance65

ADD – ADD is the value commonly used for bifocal or progressive lenses. ADD indicates how much power is added to the distance prescription to create the reading-only prescription. ADD corrections will usually have the same value for both eyes. The abbreviation PAL may appear next to one of the numbers in the ADD field, or it may be written elsewhere on your prescription, this indicates that your doctor determined that you will need a different ADD correction for progressive lenses.

PAL– Progressive additive lens (ADD value specifically for progressive bifocal lenses).

Ordering Information

We hope that this post has provided you with helpful information that you will assist you during your research. To review, we covered the different types of prescription lead glasses that we offer, common terminology and abbreviations found on your prescription, and what prescription information we need to properly place your prescription lead glasses order. When ordering, please fax or email your prescription (Rx) including your pupillary distance (PD). For your convenience, prescription information can also be noted in the “Order Comments/Special Instructions” section under “Payment Information” while checking out.

Please note: Lens enhancements options are not available in combination with prescription lenses. 

Questions? Comments?

If you have any questions regarding the different types of prescription lead glasses that we offer, please feel free to contact us via live chat or simply leave a comment below.

Sources:

American Optometric Association – Eye & Vision Problems

 

How Do I Order Prescription Lead Glasses?

Question: How Do I Order Prescription Lead Glasses?

This is a frequently asked question that we receive from our new and existing customers. This post will walk you through the necessary steps to ensure that your order is processed in a timely manner. It is our goal to make your experience as painless as possible.

We currently offer over 75 different styles of lead glasses available with different types of enhancements. There are three prescription lens types available, including single vision, lined bifocal, and progressive bifocal (progressive lenses). Please note that the availability of Rx lenses will vary by frame type.

Step 1 – Find your pair of lead glasses

Step 2 – Determine prescription type

  • Single vision
  • Lined bifocal
  • Progressive bifocal (no-lines)

Step 3 – Choose Your Lens Style

Please note that options will vary by frame style and manufacturer. Due to the custom nature of prescription lead glasses they cannot be returned.

  • Standard
  • Anti-reflective (not available with prescription lens)
  • Fog free (not available with prescription lens)
  • Single vision Rx
  • Lined Bifocal Rx
  • Progressive bifocal Rx

Pricing adjusts in real-time as you add enhancements to the frames. The single vision, lined bifocal, and progressive bifocal prescription radiation safety lenses all offer the industry standard 0.75mm lead equivalency and are manufactured using SCHOTT SF-6 HT radiation resistant glass.

Step 4 – Choose frame color

Please note that color options will vary by frame style and manufacturer

Step 5 (Optional) – Add frame imprint text

  • Frames will be laser engraved
  • Imprint limit is 35 characters (may vary by model)
  • Engraved glasses are non-returnable

 Step 6 – Select desired quantity and click “add to cart”

Step 7 – Review your order

  • Review your order for accuracy

 

Step 8Proceed to checkout

  • Returning customers can sign in for faster checkout
  • New customers can create a personal account (Benefits of registering: quick checkout on future orders, easy order tracking, and special offers)

Step 9 – Enter billing and shipping information

  • Enter your billing information
  • Enter your shipping information
  • Choose your shipping method (Selecting Next Day or 2nd Day Air will only change the shipping transit time, as prescription lenses are made to order)
  • Enter payment information

Step 10 – Add Prescription Information

Please note that the manufacturer will contact us if they have any additional questions regarding the prescription after their initial review to ensure accuracy.

  • Add prescription information in the “Order Comments/Special Instructions” box
  • Include OD/OS values from prescription
  • Include Pupillary Distance (PD)
  • Prescriptions can be faxed to 1-800-535-6229
  • Prescriptions can be emailed to order@universalmedicalinc.com

Ordering Information

Prescription lead glasses normally take at least two weeks to produce (may vary depending on item availability). If you need prescription lenses before a certain date contact, please customer service for specific information regarding frame availability and production time. As mentioned above, selecting priority shipping will only expedite the transit time of the package. Since the prescription lenses are made for your unique eye prescription, production times will vary. In an upcoming post, we will discuss the different prescription lens types that we offer in more detail. If you’re curious as to how prescription lead glasses are made, you’ll want to make sure and check out our video.

Questions? Comments? 

Not sure what type of frame is right for you? Many of our lead glasses have product demonstration videos to help you find the right style. If you have any additional questions, please feel free to contact us or leave a comment in the box below.

Caring For Your Lead Glasses: 7 Tips To Follow

Protecting Your Eyes

Your eyes are an important part of your overall health. Protecting your eyes, whether from ultraviolet radiation or ionizing radiation is important. Among the tips for maintaining good eye health is to always wear protective eyewear.

How Do Lead Glasses Protect Your Eyes?

Radiation eye protection should always be used when working near and around ionizing radiation. Recently, several studies have found that wearing lead glasses significantly reduces the lens dose rate. One study published in November of 2010, Comparing Strategies For Operator Eye Protection In The Inventional Radiography Suite states that the “use of leaded glasses alone reduced the lens dose rate by a factor of five to 10.”

Lead Glasses: Proper Care And Maintenance 

Wearing the proper radiation eye protection is an important part of following sound radiation safety principles. Properly maintaining and caring for your lead glasses is an important consideration as well. Lead glasses come in a wide-variety of shapes and sizes to accommodate the unique demands of the individuals that wear them. By following these 7 tips you will learn how to care for and maintain your lead glasses for years to come. Before reading the 7 tips, it may be beneficial to review our previous post, What Are The parts Of A Lead Eyeglass Frame?to help familiarize yourself with the various names and components of lead glasses.

1. Use Care When Removing Lead Glasses

Lead glasses are heavier than traditional eyeglasses due to the added weight of the leaded glass. Always use two hands when removing your lead glasses to keep the hinges, lead side shields (if applicable), and temples properly aligned. Avoid removing the frames with one hand, repeatedly removing the frames this way can stretch the temples and ultimately effect the fit of the glasses.

2. Don’t Use The Bridge For Adjustments

As we discussed earlier, lead glasses come in a wide-variety of shapes, sizes and designs. Although the styles of lead glasses may vary, it is important to avoid adjusting metal framed glasses by pushing on the bridge, doing so can result in improperly aligned nose pads, and wearing the finish off the frames. To ensure that you keep your frames properly aligned and comfortable, adjust your frames by positioning your thumb at the bottom of the frame front and your fingers on the top, and move them to the desired location on your face.

3. Avoid Placing Lead Glasses On The Top Of Your Head

The attenuating properties of lead lenses (0.75 mm lead equivalent) makes the lenses heavier than traditional corrective lenses. Placing your lead glasses on the top of your head can result in them falling off, and with the added weight of the lead lenses, damaging your lead glasses. The overall shape of the frame shape can become stretched, resulting in a less than ideal fit.

4. Avoid Cleaning Lenses With Abrasive Materials

Undoubtedly the most important component of any pair of lead glasses, prescription or not, is the lens. Dirty lenses can impact your sight and make any procedure more challenging. A microfiber optical cleaning cloth is designed for providing a safe and effective means of cleaning your lenses.

Cleaning Lead Lenses

To clean your lead lenses, secure the frames in one hand and rinse the lenses with clean lukewarm water to remove any fine particles of dust or smudges. Using your dominate hand, gently rub the microfiber optical cleaning cloth until the lenses are completely clean. To avoid scratching and damaging your lead lenses do not use any of the following abrasive materials:

  • A dirty microfiber optical cloth
  • Clothing
  • Tissues or paper towels

5. Use Lens Wipes/Professional Lens Cleaner Spray

Before using any type of lens cleaning solution or lens wipe check with the manufacturer’s cleaning and care instructions. Generally, lens cleaning spray can be safely used on lenses that have had anti-fog. Avoid using spray cleaners for lenses that have anti-reflective or coated lenses.

6. Purchase An Eyeglass Repair Kit

As we discussed earlier in the post, the hinges can loosen over time and can result in a less than desirable fit. By purchasing a simple eyeglass kit you will be able to make minor adjustments to keep your lead glasses performing at optimum levels. You should plan on adjusting your lead glasses twice a year to tighten any loose screws and ensure a comfortable fit.

7. Protect your Lead Glasses By Keeping Them In A Case

Whether you receive a glasses case with your purchase or buy one, it is imperative to properly store your lead glasses in a case when you aren’t wearing them. By using a glasses case, you will ensure that your lead glasses are protected against nicks and scratches.

Dust particles, scratches, and hairline cracks can make viewing through your lenses much more difficult. To get the most out of your lead glasses, remember to always store them in your case when not in use. Depending on the manufacturer, lead glasses may come with a case or pouch for safe storage.

Questions? Comments?

We’d like to hear your feedback. Connect with us on social media or simply leave a comment below!

 

 

How Do Lead Glasses Protect Your Eyes?

Protecting Your Eyes From Ionizing Radiation Exposure

Lead shielding is an important radiation safety principle. In fact, shielding is one of the three basic radiation safety principles. Time, distance and shielding are the primary means of eliminating or reducing ionizing radiation exposure.

Lead Shielding

Shielding should be used wherever it is necessary to reduce or eliminate radiation exposure. There are a variety of types of lead shielding options, the focus of this article will be on radiation eye protection and the use of lead glasses.

Radiation Attenuation 

Appropriate shielding placed between the source of radiation and the worker, radiation is attenuated and exposure may be completely eliminated or reduced to an acceptable level. Lead acts as a barrier to reduce x-ray’s effect by blocking or bouncing particles through a barrier material. Attenuation is the result of interactions between x-ray and matter that include absorption and scatter. Much like lead aprons which are commonly found in x-ray rooms in hospitals, lead glasses reduce radiation exposure and protect the lens of the eye.

Occupational Radiation Exposure Limits

Exposure limits have been established by the Nuclear Regulatory Committee (NRC) and set to a level where apparent injury due to ionizing radiation during a normal lifetime is unlikely. This limit is called the “maximum permissible exposure” and medical personnel should be aware of their occupational radiation dose. These occupational radiation exposure limits have been established to help minimize the amount of radiation a worker receives annually by monitoring their occupational radiation dose and keeping them under the established limits. “The exposure limit for the whole body (5,000 mrem) is lower than that for a single organ because all organs and tissues are exposed in whole body exposure, while only a single organ is involved in the single organ exposure limits¹.”

Lens of Eye (LDE) Radiation Exposure Limit

The occupational exposure limit for the lens of the eye (LDE) is 15,000 millirem or 0.15 Sieverts. The Lens of Eye Dose Equivalent (LDE) 10 CFR 20.1003 “applies to the external exposure of the lens of the eye and is taken as the dose equivalent at tissue depth of 0.3 centimeter (300 mg/cm²).”

Personal Monitoring 

The U.S. Nuclear Regulatory Commission has requirements regarding personal monitoring devices. Many medical personnel are required to wear an individual monitoring device to measure the dose to the whole body as well as one at an unshielded location closer to the eye to provide an accurate reading of the lens dose equivalent. Wearing lead glasses will help ensure the lenses of the eyes are properly protected from ionizing radiation thereby reducing your risk of developing cataracts.

“Radiation workers who operate x-ray machines, fluoroscopy units, certain unsealed and sealed radioisotopes or are exposed to other sources of gamma or high energy beta radiation are generally required to wear one or more dosimeters².”

Eye Protection: Reducing Tissue Reactions

Tissue reactions, previously referred to as deterministic effects or non-stochastic effects, describe a cause an effect relationship between radiation and some side-effects. There is a threshold dose, once exceeded, the severity of an effect increases with dose. Examples of tissue reactions include skin erythema, which can occur shortly after radiation exposure. Late tissue reactions, particularly those involving the lens of the eye, such as cataracts, can develop long after the initial radiation exposure, but still can be traced back to the original exposure.

Radiation-Associated Cataracts 

Two separate studies published in 2010 reported that interventional cardiology personnel have an increased risk of developing cataracts, a clouding or opacity of the eye that hinders vision. In a recent study, Radiation Cataract Risk In Interventional Cardiology Personnel (October of 2010), Vano et al tested 116 exposed interventional cardiologists, nurses, and technologists for radiation cataracts and compared them to 93 unexposed control personnel. Thirty-eight percent of the cardiologists, with a cumulative median lens dose of 6.0 Sieverts, developed cataracts, compared with 12 percent of the controls. Twenty-one percent of the other medical personnel, who were exposed to a cumulative median lens dose of 1.5 Sieverts, developed radiation-associated lens changes attributed to ionizing radiation exposure.

The second study, Risk For Radiation-Induced Cataract For Staff In Inventional Cardiology: Is there reason for concern? (November 2010)examines the prevalence of radiation-associated lens opacities among interventional cardiologists and nurses and to correlate with background radiation exposure. The results of the study demonstrated a dose dependent increased risk of posterior lens opacities for interventional cardiologists and nurses when radiation protection tools are not used. Although, a study of a larger cohort is needed to confirm these findings, the results suggest ocular radio-protection should be used.

Radiation Eye Protection 

Our eyes are one of our most valuable organs, without properly functioning eyes even the most routine tasks can become extremely difficult to complete. “Eyes are delicate and precious” says Dr. Andrew Lwach, spokesperson for the American Academy of Ophthalmology. When working near and around ionizing radiation it is important to protect your eyes from potential exposure by wearing lead glasses. Radiation safety glasses, commonly referred to as lead glasses, are designed to protect the lens of the eye by reducing the amount of radiation that is permitted to pass through the leaded glass lenses.

Conclusion 

According to a study, Comparing Strategies For Operator Eye Protection In The Interventional Radiography Suite, published in November of 2010, the “use of leaded glasses alone reduced the lens dose rate by a factor of five to 10.” The operator lens radiation dose rate was recorded with a solid-state dosimeter with nonleaded and leaded (0.75mm lead equivalent) eyeglasses. Lens dose measurements were obtained in right and left 15 degree anterior obliquities with the operator at the upper abdomen and during digital subtraction angiography (two images per second) with the operator at the patient’s groin.

Lead Glasses 

Today, lead glasses come in a wide-variety of styles and configurations including wraparound, goggles, fit over, economy, plastic, metal, and designer frames. For example, metal frames are available with frontal (lens) and lateral radiation(side shields) protection offering 0.75mm and 0.35mm lead (Pb) equivalency respectively.

The industry standard 0.75mm lead equivalency SCHOTT SF6 radiation safety glass lenses provide protection from harmful radiation exposure. The lenses have been tested (CE Certified for Radiation Reducing Eyewear) at 100 kV and have a nominal lead equivalence of 0.75mm Pb and the side shields offer a nominal lead equivalence of 0.35mm Pb at 100 kV. Lead glasses are an essential piece of personal protective equipment that will help reduce the amount of radiation exposure to your eyes.

 

3 Rugged Oakley Radiation Eye Protection Lead Glasses

New Lead Glasses From Oakley

We are excited to announce the addition of a new line of high-quality and durable radiation eye protection lead glasses from Oakley. There are three models available including the classic Oakley Straight Jacket, the Oakley Crankshaft, and the Oakley Fives Squared. These new frames are a welcomed addition to our extensive selection of radiation eye protection and that provides our customers with a stylish and unique answer to traditional radiation eye protection.

 Straight Jacket® Lead Glasses

The aggressive styling combined with over a decade worth of research has produced the Oakley Straight Jacket radiation glasses. These lightweight and durable stress resistant Straight Jacket frames utilize Oakley’s O-Matter® frame technology and are engineered to provide you with all-day comfort and performance.

Part of the Oakley active line, and available in a variety of colors, these frames offer protection that meets ANSI standards for both high-velocity and high-mass impact.

Designed to fit medium faces, the Straight Jacket frame utilizes soft Unobtanium components to increase grip with perspiration around the nose and ears, ensuring a snug fit.

For those that define style on their terms, the Oakley Straight Jacket Radiation Protection Lead Glasses provide you with unmatched comfort, performance and eye protection from the harmful effects of ionizing radiation.

Crankshaft™ Lead Glasses

Fusing radiation protection with the inspired smooth styling of the popular Oakley Gascan® and Fuel Cell™ designs comes the ultimate in radiation eye protection, introducing the revolutionary Crankshaft Radiation Glasses.

The lightweight and durable stress-resistant Crankshaft frames, available in a variety of colors, utilize Oakley O-Matter frame technology providing you with all-day comfort and performance.

Part of the Oakley Lifestyle line, these wraparound frames improve side protection and are designed to comfortably fit medium to large faces.

Achieve a new level of performance and style while protecting your eyes from radiation with the innovative Crankshaft Radiation Glasses.

Fives Squared Radiation Protection Lead Glasses

Faces are not one size fits all, your radiation glasses are no exception. Introducing the Fives Squared Radiation Protection Glasses, specifically designed for small to medium faces, that feel as great as they look.

Constructed of Oakley’s lightweight and durable stress-resistant O-Matter material, this frame is engineered to provide you all-day comfort and performance by utilizing Oakleys unique condensed cranial geometry.

The patented hydrophilic Unobtainum nose pads reduce slipping by increasing grip with perspiration, providing you with a snug and secure fit.

The dimensional reliefs, metal icons and sculpturally integrated hinges with dual action cams, the Fives Squared frame is the perfect blend of sophisticated styling and performance eye protection.

When ordinary radiation protection glasses just don’t fit, look no further, the Fives Squared Radiation Glasses is your answer to comfort and protection.

Lead Glass Lenses 

All three of the frames are outfitted with SCHOTT Radiation Safety Glass Lenses that provide the industry standard 0.75 millimeter lead equivalency and are held securely in place by Oakley’s unique Three-Point Fit technology, ensuring safety and long lasting performance.

Frame Personalization 

You can leave your mark by adding the option of a personalized imprinting of up to 35 characters on the outside of the frame arm and enhance the performance of the lead glass lenses with the optional fog-free or anti-reflective coatings. These customizations and enhancements are available for all three frames.

This is an exciting addition to our radiation eye protection line-up and if you would like to be notified of any future radiation eye protection glasses subscribe to our blog and we will notify you of upcoming product releases.

5 Ways To Minimize Your Occupational Radiation Exposure

Minimizing Occupational Exposure

“The ideal dose is the least amount of radiation possible to produce an acceptable image.”

1. Time

Time is one of the three basic safety measures to reduce external radiation exposure. It is important for healthcare personnel to limit the amount of time spent in close proximity to the radiation source when exposure to the radiation source is possible. Reducing the time of an exposure reduces the effective dose (radiation) proportionally. Consequently, the less time you are around the equipment, the smaller your exposure will be.

2. Notification by Radiation Equipment Operator

Before any treatment or procedure, it is the responsibility of the trained and certified radiation equipment operator to notify healthcare personnel in the x-ray or treatment room prior to the activation of radiation producing equipment (RPE).

Any piece of equipment in which x-rays are produced electrically are classified as radiation producing equipment or RPE. These tools are used in a variety of medical applications including radiography, mammography, computed tomography, and fluoroscopy.

3. Fluoroscopic Procedures

Healthcare personnel performing fluoroscopic procedures must ensure that the patient is kept as close as possible to the image intensifier side of the fluoroscopic unit and away from the tube side of the unit. All healthcare personnel involved in the fluoroscopic procedure must stand on the image intensifier side of the fluoroscopic unit, whenever possible, to reduce the radiation exposure. Standing on the the same side as the image intensifier radiation intensity is decreased.

4. Avoid Direct Beam Exposure

Healthcare personnel assisting with radiological procedures must avoid holding the patient manually during a radiographic study due to the risk of direct beam exposure.  Any individual holding or supporting a person during radiation exposure should wear protective gloves and apron with a minimum of 0.25 millimeters lead equivalent. Under no circumstances should individuals holding or supporting a person’s part of their body be directly in the primary beam. Healthcare personnel must avoid exposing any body parts to direct x-ray beam exposure.

5. Utilize Shielding

Whenever possible, appropriate shielding should be used to provide attenuation of the radiation being delivered to the healthcare personnel who are potentially exposed. Healthcare personnel must keep all body parts out of the direct x-ray beam. There are a variety of shielding options available and may include, but are not limited to:

Specific Shielding Applications

Healthcare personnel who may have to stand with their backs exposed to the radiation beam must wear wrap-around aprons to decrease the risk of radiation exposure.

Bone and Bone Marrow Protection

When healthcare personnel are in close proximity to the radiation beam they should wear an appropriate lead or lead equivalent apron of sufficient length to shield the upper legs and protect the long bones and bone marrow from increased doses of radiation.

Thyroid Protection 

Healthcare personnel must wear a thyroid collar to protect the thyroid whenever the likelihood of the procedure places them at a higher risk of increased exposure.

Female Healthcare Personnel 

Female healthcare personnel must protect their breasts from radiation exposure by utilizing an apron that completely covers the area.

Eye protection

Healthcare personnel must shield the lens of the eye by using leaded eyeglasses with wrap-around side shields or leaded face shields to reduce scatter radiation when it is anticipated that increased fluoroscopic time may be necessary.

Limiting Radiation Exposure 

Reducing radiological exposure in healthcare settings is important for both occupational workers as well as patients. The following guidelines are based on the radiation safety principles of time, distance, and shielding. By following these guidelines, you can reduce your occupational exposure to radiation.

 

 

 

Note: This information included in this post is intended for general reference information only. The information provided is not a substitute for professional advice and should not be relied upon in the absence of such professional advice.

Do You Know Your Occupational Radiation Dose?

Ionizing Radiation Exposure 

Ionizing radiation is radiation with enough energy so that during an interaction with an atom, it can remove tightly bound electrons from the orbit of an atom, causing the atom to become charged or ionized¹.

X-radiation

X-rays are a type ionizing radiation, which are electromagnetic, indirectly ionizing radiation. X-ray machines and radiation emitting sources are used in hospitals for the diagnosis and treatment of diseases. Hospital employees or “occupational workers” who work in radiology, nuclear medicine, radiation oncology, and some laboratories are specifically trained in the operation of machines that emit radiation as well as the handling of radioactive materials and sources.

Shortly after Wilhelm Roentgen’s discovery of X-rays in 1895 , concern over the biological effects of ionizing radiation began. Over the past 100 years, diagnostic radiology has evolved from the original, unrefined practices to the advanced medical imaging techniques that are now an essential tool for all branches and specialties.

Ionizing radiation provides many benefits, but also has the potential to cause harm to patients and medical personnel. Throughout the years, multiple recommendations regarding occupational exposure limits have been developed by the International Commission on Radiological Protection (ICRP), the U.S. Nuclear Regulatory Commission, and other radiation protection groups. The primary guidelines established have had two principle objectives: 1) to prevent acute exposure; and 2) to limit chronic exposure to “acceptable” levels.

The ALARA Principle

Based on the conservative assumption, current guidelines state that there is no safe level of radiation exposure. Even the smallest exposure to ionizing radiation has some probability of causing a stochastic effect, such as cancer. The ALARA principle is based upon this assumption and has led to the general philosophy of keeping exposures below recommended levels and regulation limits. ALARA is a basic radiation safety principle and means that every reasonable effort must be made to keep the dose to workers and the public “as low as reasonably achievable.”

Occupational Exposure

Regulatory limits for occupational exposure are found in Title 10 Part 20 [Standards For Protection Against Radiation] of the U.S. Nuclear Regulatory Commission, Code of Federal Regulations, and in equivalent state regulations. The annual occupational dose limits have been derived from a study of the observed health effects of radiation on humans and animals during the 20th century². By creating these maximum exposure limits, occupationally exposed radiation workers will be subjected to a level of risk no greater than that in other occupations subject to high safety standards.

Units of Measure

Absorption of radiation can cause tissue damage, therefore a unit of measuring the damage and ensuring that the damage is kept to a minimum is necessary. The amount of radiation energy absorbed in a body is referred to as dose, therefore dose is the amount of radiation you receive. Dose rate indicates how fast you receive the dose or the intensity of the radiation.

  • Dose – generally measured in mrem
  • Dose rate – generally measured in mrem/hr.

Dose-equivalent or rem is a special unit used for measuring dose in a person.

“The rem is the unit used for equating radiation absorption with biological damage.” 

The rem is a rather large unit of measure. Consequently, radiation exposure is generally measured in thousandths of a rem – or a millirem as shown in the table above.

1 rem = 1000 millirem

Occupational radiation exposure is recorded in rems or Roentgen equivalent man. The rem factors in the energy absorbed and the relative biological effect on the body due to the different types of radiation (quality factor). The rem is a measure of the relative harm or risk caused by a given dose of radiation when compared to other doses of radiation of any type. Put simply, the rem can be thought of as the unit of biological hazard.

Maximum Annual Occupational Dose
Whole Body5000 millirem
Extremities 50000 millirem
Lens of the Eye15000 millirem
Fetus500 millirem*
Individuals in the General Public100 millirem

*500 millirem for the fetus is during the gestation period

Sources:

http://www.who.int/ionizing_radiation/about/what_is_ir/en/

http://www.jlab.org/div_dept/train/rad_guide/fund.html

Radiation Shielding: A Key Radiation Protection Principle

Time, Distance, and Shielding

Time, distance, and shielding are the three basic concepts of radiation protection that apply to all types of ionizing radiation. Shielding simply means having something that will absorb radiation between the source of the radiation and the area to be protected. Radiation shielding is based on the principle of attenuation, which is the gradual loss in intensity of any energy through a medium.

Lead acts as a barrier to reduce a ray’s effect by blocking or bouncing particles through a barrier material.  When X-ray photons interact with matter, the quantity is reduced from the original x-ray beam. Attenuation is the result of interactions between x-ray and matter that include absorption and scatter. Differential absorption increases as kVp decreases. The greater the shielding around a radiation source, the smaller the exposure.

X-Ray And Gamma Rays

X-ray and gamma rays are forms of electromagnetic radiation that occur with higher energy levels than those displayed by ultraviolet or visible light. Thick, dense shielding, such as lead, is necessary to protect against the energy emitted from x-rays. Shielding and x-ray room design is a very important consideration for any healthcare facility that  performs diagnostic and interventional radiology.

The purpose of shielding is to protect the patients (when not being examined), X-Ray department staff, visitors and the general public, as well as the people working near the  X-Ray facility. There are three sources of radiation that must be shielded; scattered or secondary (from the patient), primary (the x-ray beam), and leakage (from the x-ray tube).

Scatter Radiation

Diagnostic x-ray procedures frequently require medical personnel to remain in the exam room where they are subjected to scatter radiation. Lead aprons offer valuable protection from radiation exposure but there are times that a mobile lead radiation barrier is required to provide a full body shielding barrier.

Imaging procedures performed in remote locations, such as operating rooms, cardiac catheterization labs, and special procedure rooms pose an added challenge to protect against radiation exposure. Lead barriers are excellent for imaging procedures using ionizing radiation such as fluoroscopy, x-ray, mammography and CT.

Lead Shielding

The use of shielding provides a barrier between you and the source of the radiation. Some examples of shielding are lead aprons, lead glasses, thyroid shields and portable or mobile lead shields. Mobile lead shields of at least 0.25 mm lead equivalency are recommended to be used by anyone working near the table during fluoroscopy procedures when possible. Remember to follow ALARA “as low as reasonably achievable” guidelines when involved in diagnostic or interventional radiology procedures. Lead garments, lead gloves, thyroid shields, leaded glasses, lead drapes, as well as mobile and stationary lead barriers between the patient and personnel all reduce exposure to scatter radiation.

Questions? Comments? 

If you have any questions regarding the selection of lead barriers or mobile lead shields, please feel free to leave a comment below or connect with us over on our Google+ community page and keep the discussion going!