What are PMB filterglasses?
PMB filter glasses do filter specific wavelengths of light completely (cutoff filter). This results in a noticeable reduction in the annoying glare.
Benefits of PMB filterglasses:
- index cr39 1.6
- visible reduction of glare
- optimized contrast
- more comfortable vision in eye diseases
- optimum protection
What is the difference with ordinary sunglasses?
In an ordinary sunglass all the light rays are being stopped equally; for example, 70% or even 85%. So, there is only 30% to 15% left of the original visible light, what will be too dark for certain people with eye diseases. A PMB filter glass let the good, harmless light through and protects your eyes more than ordinary sunglasses against the harmful (blue) light.
Extra advantages of the PMB filterglasses:
- a contrast enhancement effect by filtering the harmful (blue) light
- a photochromatic function so that they are always passing the same amount of light rays. Outside they will be darkened as the sun shines, inside they are bright to be able to let more light through. This gives in all conditions the same luminous transmittance, which arrange a very smoothly comfort to the wearer.
- improve clarity with an always included multi-AR coating/clean coat.
The photochromatic PMB filterglasses are only reimbursed in the following cases:
- retinitis pigmentosa
- albinism
- aniridia
- achromatopsia
- tapetoretinal degenerations
- Birdshot-chorioretinopatie
- diabetic retinopathy with severe photophobia
- optic nerve atrophy
This for submission to the medical officer and certified by a physician, specialist in ophthalmology.
