Lens with UV+420cut technology

Typical UV-cut lensTM

* The photo is provided for illustrative purposes. Note that the actual product does not completely block all UV light up to 420 nm.

UV is not the whole story.
Take better care of your eyes with UV+420cut technology.
TMUV+420cut

TMlens technology* In this leaflet, the phrase “caring for your eyes” means protecting your eyes from UV and a part of the high energy visible light.

New technology blocks UV and a portion ofthe high-energy visible (HEV) light.

-Technology
A clear lens is achieved through new technology thatblocks high-energy visible (HEV) light at 400-420
nm,in addition to UV-A and UV-B.

Transmittance (%)

UV and HEV light cut rate
Wavelength

Transmittance of our hard multi-coated lens measuring 2 mm in central thickness

100380-500 nm
400 nm
410 nm
420 nm
430 nm
380-500 nm

8060

UV+420cut

40Cut rate

TM200360380400420440460

ISO12312-1

480What is HEV light?
HEV light is high-frequency, high-energy light in theviolet/blue band from 400 to 500 nm in the visiblespectrum.

-HEV light reaches the cornea.
RetinaCorneaOzone Layer

Crystalline
lens

HEV light

High-energy visible light
UV-A
UV-B
UV-C

Percentage
2 mm
1.2 mmnonprescription nonprescription
42.2
39.1
99.9
99.9
99.9
99.7
86.1
70.5
30.1
20.2
24.3
-

Measured with our 1.60 MR-95TM lensWavelength (nm)--Macula lutea

Clear lens for everyday use
Beyond sunny days or clear skies, we’re exposed to
40% to 75% of UV rays on cloudy days and 20% to30% on rainy days. Clear lenses can be worn under
all weather conditions and are recommended formaintaining long-term eye health.

25%

40%

75%

Rainy day

Cloudy day

Sunny day

Optic Nerve

Iris

HEV light
UV-C
200

UV-B

UV-A

300

400

Ultraviolet

500

600700Visible light

Wavelength (nm)Infrared

The latest research shows that blocking UV and HEV
light is critical to protecting eyes from cataracts andage-related macular degeneration (an eye disordercaused by age-associated decline in the function of
the macula in the center of the retina).

-The lenses won’t affect the way you perceive naturalcolors. Eyewear with UV+420cut is suitable for all
situations.
TMImportance of blocking HEV light
Importance of blocking shorter wavelength light up to420 nm for long-term eye health
The shorter wavelength light of 400-420 nm is more harmful
for younger individuals under 20 years old, who play andenjoy outside under sunlight, because their eye lenses are verytransparent.The group of Prof. Funk showed in standardized
laboratory experiments by cell culture that neuronal retinal
cells react after exposure to short wavelength light of
411nm with much higher stress and signs of beginning celldeath (apoptosis) than after impingement of 470nm light.* 1Thus, it is very useful to block HEV light of 400-420 nm, because
the light can trigger harmful processes for the eye.

Dr. Richard H. W. FunkLenses with UV+420cutTM technology-Available material per index
Mitsui’s UV+420cutTM technology is available only with the MRTM series and the RAV7TM Series.

Refractive
index

1.50Lens
Material

RAV7 BC *

1.60

1.67

1.74

MR-6
MR-8 *2
MR-95

MR-7 *2
MR-10

TM

TM

2TMTMTMTM

MR-174

TM

Medical Faculty Carl Gustav Carus, Technical University of Dresden
Knels, L.,Valtink, M., Roehiecke, C.,Lupp, A.,Vega, J.d. l., Mehner, M., & Funk, R. H. W. (2011)*1: Blue
light stress in retinal neuronal (R28) cells is dependent on wavelength range*2: Those materials will be not available in some regions. Please contact us for details.

and irradiance. European Journal of Neuroscience, 34, 548-558

https://jp.mitsuichemicals.com/en/special/uv420cut/
MITSUI CHEMICALS, INC. Vision Care Materials DivisionTokyo Midtown Yaesu, Yaesu Central Tower, 2-2-1 Yaesu, Chuo-ku, Tokyo 104-0028, JAPANTEL: +81-3-6880-7450 FAX: +81-3-6880-7560 https://jp.mitsuichemicals.com/en/
MR, MR-6, MR-7, MR-8, MR-10, MR-95, MR-174, RAV7, UV+420cut and the UV+420cut logo are either registered trademarks or trademarks of Mitsui Chemicals, Inc. in Japan and/or other countries.

©2023 Mitsui Chemicals Inc.
MVC-005E Ver.1 02/2023