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BR126 – Optimisation of Protection for the Lens of the Eye

The updated radiation protection legislation has lowered the limit
of the organ equivalent dose for the lens of the eye, for persons
exposed to occupational radiation above the age of 18, from
150 mSv to 20 mSv per calendar year (Radiation Protection
Act – StrlSchG, coming into force on 01/10/2017 and 31/12/2018).
A significant minimisation of cataract risk is expected from this
change in legislation.

Cataract Risk (Weblink)

 

 

The Best Possible Radiation Protection for the Lens of the Eye

Efficient radiation protection for the lens of the eye also requires protection
from secondary radiation hitting the lens from the side and also from below.
It is therefore important that there is more than just frontal protection
for the eyes.

The size of the shielding for the facial area is also important.

 

Important points with respect to radiation protection for eye lenses

  • Ensure proper protective shielding of the lens from secondary radiation
    hitting from the side or below.
  • The greatest possible shielding of the facial area improves radiation
    protection for the lens of the eye!
  • The bottom edge of the protection glasses must be as close as possible
    to the cheek area!
  • Compliance with the new limit values for the organ equivalent dose
    with respect to the lens of the eye for persons exposed to occupational
    radiation (over 18 years of age): 20 mSv per calendar year!
  • It is recommended that suitable straps are used for a correct fit of the
    protection glasses for the duration of a procedure!

 

The BR126 Glasses at a Glance

 

X-Ray Protection Glasses

The first generation BR126 protection glasses were already
equipped with adequate side protection. After the facelift,
second-generation BR126 glasses have optimized side radiation
protection.

Good Fit and Comfort

To ensure that the fit is optimally consistent with one’s respective
facial geometry, we offer two sizes in this model range.
The important performance parameter of a tight seal of the glasses
against the cheekbones is perfectly implemented with the curve
of the frame.

The soft curves on all the components of the frame provide good,
wearable comfort. We have made sure there is a wide contact surface
at the nose bridge, which distributes the weight of the protection
glasses over a widespread area.

Eyesight Correction

The mineral lead lenses used by us in combination with the special
fit of the BR126 allow for the correction of eyesight in the single-vision
as well as for bifocal and progressive lenses.

 

 


The BR126 is designed to best protect the user’s eyes from scattered
radiation from all angles of incidence.
This requirement has been effectively addressed in the design of the glasses
by means of large-area X-ray protective glazing and two side radiation protection
zones that are closely connected to the front lenses.

 

MAVIG lenses are made of the highest quality mineral radiation protection glass.
Excellent light transmission of the glasses and perfect transparency are guaranteed.
An anti-reflective coating increases light transmission and provides relaxed vision
through the avoidance of disturbing reflections or mirror images. Symptoms of
fatigue are reduced and what you need to see is kept in view.

 

The temple tips have a rounded shape, which ensures that there is no pressure
behind the ears.
To maintain correct positioning of the protective glasses throughout the entire
time of wearing them, we recommend using the strap that is included.
This ensures a secure hold of the X-ray protection glasses on the face even
when wearing them over a long period of time.

 

Special quality features make the glasses ideal for use in the medical field:

  • Frame made of high-quality plastic materials with great shape retention
  • Complete avoidance of the use of plasticisers in production
  • The materials used ensure the greatest possible freedom from allergens
  • Easy to clean and a high degree of chemical resistance (disinfectant resistance)
  • Standard anti-reflective coating on the lenses
  • Sight-correction lenses are available as single-vision, bifocal, and progressive lenses

 

Technical Data and Specifications

 

Models
Colour design

Cocoa/Light Blue

Sandstone/Orange

Sizes

“small-medium” and “large”

“small-medium” and “large”

Lead equivalent value
Front protection (50 – 150 kV)

Pb 0.50 mm or Pb 0.75 mm

Pb 0.50 mm or Pb 0.75 mm

Lead equivalent value
Side protection (50 – 150 kV)

Pb 0.50 mm

Pb 0.50 mm

Weight

Approx. 80 g (Pb 0.50 mm)
Approx. 85 g (Pb 0.75 mm)

Approx. 80 g (Pb 0.50 mm)
Approx. 85 g (Pb 0.75 mm)

Anti-reflective coating

+

+

Glasses strap

+

+

Cleaning / disinfection

+ / +

+ / +

Conformity:
DIN EN 61331-1:2016 /
DIN EN 61331-3:2016

+ / +

+ / +

 

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