uV rays assault thE EyEs 365 days a yEarEveryone knows UV rays are extremely harmful on sunny days, yet they reach our eyes 365 days a year, even in cloudy weather. we get more than 40% of uV exposure when we are not in full sunlight.
uV light is a major hazard to thE EyEuV light has a direct and cumulative impact on eye health, accelerating eye ageing and the appearance of cataracts. it is estimated that 20 million cataract surgeries are performed every year.
Calculation based on urban workers in the Northern hemisphereIndoor low UV emission from fluo-compact lighting.
UV qty (Lx)
500
5 000
25 000
100 000
UV qty per year
~7%
5%
30%
58%
›40%
eVeryday protection is essential
(1) UV cut by transmission: 1.5 index cuts 95%UV, UHI indexes cuts 100% UV.(2) % of total UV exposure received by eye without any protection. Up to 50% depending on lenses and fitting parameters.
All clear lens materials cut between 95%(1) to 100% of UV rays passing through the front of the lens.
All current AR lenses show high reflection of UV into the eyes. Measurements have found that UV reflected from back surface account for 10 to 50%(2) of total exposure.
New Crizal Forte UV raises clear lens UV protection to a new level, also protecting against UV reflections off the back surface of the lens.
uV light
on all CurrEnt ar lEnsEs thE main uV EXposurE ComEs From thE baCK
up to 50%
ultra protection.
against. ultraViolet.
Crizal FortE uV: thE most adVanCEd ar lEnsA differentiated anti-reflective coating on both the front and back lens’ surfaces.
DUST REPELLENT LAYER
NEW
SMUDGE & WATER RESISTANT LAYER
ANTI-REFLECTIVE LAYERS WITH UV-FILTER BROAD SPECTRUM TECHNOLOGY
SCRATCH-RESISTANT LAYERS
SMUDGE & WATER RESISTANT LAYER
SCRATCH-RESISTANT LAYERSLENS
FRONT BACK
ANTI-REFLECTIVE LAYERSDUST REPELLENT LAYER
superiority against the FiVe enemies oFclear Visionmaintained
EXisting ar lEnsEs arE dEsignEd For maXimum VisiblE light transmission and minimum rEFlECtions
but uV rEFlECtion into thE EyEs rEmains a problEm.
rEgular sCopE oF EFFiCiEnCy
EXISTING AR LENSES
EXISTING AR LENSES
LUMIÈRE VISIBLE
VERRES ANTIREFLET STANDARDS
VERRES ANTIREFLET STANDARDSLUMIÈRE VISIBLE
introduCing broad spECtrum tEChnologyA new AR coating virtually eliminates uV reflection into the eyes while maintaining premium lens transmission. This exclusive technology extends transmission efficiency, from visible to UV light.
TECHNOLOGY COVERED BY AN INTERNATIONAL PATENT APPLICATION
T E C H N O L O G I E COUVERTE PAR BREVET I N T E R N A T I O N A L
UV
EXISTING AR LENSES
EXISTING AR LENSES
LUMIÈRE VISIBLE
VERRES ANTIREFLET STANDARDS
VERRES ANTIREFLET STANDARDSLUMIÈRE VISIBLE
(1) E-SPF developed by Essilor, endorsed by Karl Citek, OD, PhD, FAAO, Professor of Optometry, first researcher to have published on the hazard linked to UV back surface reflection.(2) Short Wavelength Technical Report International Standard ISO 8980-3. (3) Measures using average lens curvature (base 4) on a standard frame, identical for all measurements.
EXisting “100% uV protECtion” only intEgratEs uV Cut in transmission. yEt uV dangEr ComEs From EVEryWhErE.
•Essilor worked with independent 3rd-party(1) to develop a relevant protection index, based on a series of experimental measurements, taking into account UV light coming from all directions.
•Like the SPF index quoted on skin care products, the eye-sun protection Factor is a ratio between eye exposure with and without protection.
•This global protection factor integrates:
- UV passing through the front surface of the lens and UV reflected by the back surface (a) - Corneal sensitivity to UV and solar spectral irradiance(2) as UVA
and UVB do not represent the same danger for the eye - Different positions of the sun, as in real life (b) & (c) - Representative frame and lens parameters(3)
a nEW indEX mEasuring thE rEal uV protECtion giVEn by a lEns.
UV EXPOSURE BY TRANSMISSION
UV EXPOSURE BY REFLECTION
UV CAPTOR LOCATED IN THE EYE-BALL OF A DUMMY, MEASURING FRONT, BACK AND SIDES UV EXPOSURE.
12AM
3PM9AM
EXPOSITION AUX UV PAR TRANSMISSION
EXPOSITION AUX UV PAR RÉFLEXION
UV CAPTOR LOCATED IN THE EYE-BALL OF A DUMMY, MEASURING FRONT, BACK AND SIDES UV EXPOSURE.
12:00
15:009:00
aUV captor located in the eye-ball of a dummy, measuring front and back UV exposure.
UV EXPOSURE BY TRANSMISSION
UV EXPOSURE BY REFLECTION
UV CAPTOR LOCATED IN THE EYE-BALL OF A DUMMY, MEASURING FRONT, BACK AND SIDES UV EXPOSURE.
12AM
3PM9AM
EXPOSITION AUX UV PAR TRANSMISSION
EXPOSITION AUX UV PAR RÉFLEXION
UV CAPTOR LOCATED IN THE EYE-BALL OF A DUMMY, MEASURING FRONT, BACK AND SIDES UV EXPOSURE.
12:00
15:009:00
cActual UV exposure measured in the eyeball at different hours of the day, with sun at different height in the sky, with and without lenses. Dummy head inclined at 15°.
UV E
XPO
SURE
BY
TRA
NSM
ISSI
ON
UV E
XPO
SURE
BY
REFL
ECTI
ON
UV
CAPT
OR
LOCA
TED
IN T
HE
EYE-
BALL
OF
A D
UM
MY,
M
EASU
RIN
G F
RON
T, B
ACK
AN
D S
IDES
UV
EXPO
SURE
.
12A
M
3PM
9AM
EXPO
SITI
ON
AUX
UV
PAR
TRAN
SMIS
SIO
N
EXPO
SITI
ON
AUX
UV
PAR
RÉFL
EXIO
N
UV
CAPT
OR
LOCA
TED
IN T
HE
EYE-
BALL
OF
A D
UM
MY,
M
EASU
RIN
G F
RON
T, B
ACK
AN
D S
IDES
UV
EXPO
SURE
.
12:0
0
15:0
09
:00
bUV exposure measured at different positions of the sun.
introducing e-spF
25 E - S P
FEYE-SUN PROTE
CTIO
N F
AC
TOR
the best uV protection. on the market .
criZal Forte uV and optiFog with criZal uV guarantEE thE bEst E-spF on thE marKEt For ClEar and transitions® lEnsEs*
e-spF, approVed by experts UV reflection on the back surface is a hazard which has been recently highlighted by researchers. To evaluate and compare the lenses performance regarding UV back surface reflection, Essilor involved independent experts who examined and approved the calculation method.
• e-spF calculation and measurements endorsed by dr. karl citek od phd, Faao. Dr. Karl Citek, OD, PhD, FAAO, is a professor of optometry, known as the first researcher to have published on the hazards linked to UV back surface reflection.
•E-SPF=25forallCrizalForteUVandOptifogwith Crizal UV, except with Essilor Orma®1.5E-SPF=10.
* Best UV protection measured with E-SPF for Crizal Forte UV and Optifog with Crizal UV, compared to anti-reflective clear and photochromic lenses with equivalent material. Lenses performance only: E-SPF excludes direct eye exposure that depends on external factors (wearer’s morphology, frame shape, position of wear...). E-SPF measures: independent 3rd-party. USA 2011.
Crizal FortE uV / optiFog*
zEiss lotutEC
E-SPF
5
25
sola tEFlon
hoya hi-Vision longliFE
5
3
UHI / Airwear® / Transitions®
thE WEarEr is 25 times bEttEr protECtEd than Without any lEnsEs (E-spF EXCludEs dirECt EyE EXposurE From around thE lEnsEs).25
E - S PF
EYE-SUN PROTE
CTIO
N F
AC
TOR
*
supEriority proVEn by WEarErs’ EXpEriEnCE Clarity of vision is n°1 wearers expectation(1). Assessed by wearers and tested in real wearer trials against its main competitors, Crizal Forte UV gets the best overall satisfaction and still proves its superiority against the 5 enemies of clear vision.
(1) International Survey conducted by Ipsos France from January to February 2010 in 7 countries (France, Germany, Italy, USA, Hong-Kong, India, Brazil) “Most important characteristics when purchasing spectacles” - 1493 Respondents.(2) Comparative wearers tests after 1.5 months of wear, conducted by independent 3rd-party – France – 2011 – Crizal Forte UV vs Hoya Venus Guard, anequivalentversionofHoyaHi-VisionLongLife:30wearers,CrizalForteUVvsZeissLotutec:27wearers/Verysatisfied=satisfactionratedbetween 7 & 9 on a scale from 0 to 9.
wearers’ oVerall appreciation aFter 1.5 months oF wear
Percentage of very satisfied wearers (2)
Crizal Forte UV Competitor A Crizal Forte UV Competitor B
100%
75%
50%
25%
0%
100%
75%
50%
25%
0%Crizal Forte UV Competitor A Crizal Forte UV Competitor B
100%
75%
50%
25%
0%
100%
75%
50%
25%
0%
CRIZAL FORTE UV CRIZAL FORTE UVHOYA PREMIUM AR ZEISS PREMIUM AR
the best enduring clarity oF Vision
(3) Study conducted through sensory analysis methodology by independent 3rd-party - Crizal Forte UV vs Hoya Hi-Vision LongLife, Zeiss Lotutec, Sola Teflon. – 100 wearers – France – 2011.
* Prof. José Sahel receives no compensation in a private capacity for the validation of these protocols.
Wearers’ evaluation on a scale from 0 to 10 (3)
resistance against the 5 enemies oF clear Vision
0Sans titre 5
SCRATCHES WATERSMUDGES DUSTREFLECTIONS
2
4
6
8
CRIZAL FORTE UV
HOYA PREMIUM AR
ZEISS PREMIUM AR
SOLA PREMIUM AR
thE bEst Enduring Clarity oF Vision (SEE TESTS RESULTS ON PREVIOUS PAGE)
a lEns tEstEd and approVEd by WEarErs
ultra protECtion against ultraViolEt
•Protectyourpatients’eyesthankstoback surface UV protector.
96% of wearers appreciate the transparency of Crizal Forte UV lenses***
•ThebestUVProtectiononthemarket(1); measured with E-SPF, the new global UV protection index of a lens.
(1) Measured with E-SPF, a new index developed by Essilor, endorsed by independent 3rd-party, certifying the global UV protection of a lens. For Crizal Forte UV lenses compared to anti-reflective clear lenses with equivalent material. Lenses performance only. E-SPF Measures: independent 3rd-party - USA 2011. ** 25 for all Crizal Forte UV lenses, except Essilor Orma®1.5(E-SPF=10).Moreinformationonwww.crizal.com.
25 E - S P
F
EYE-SUN PROTE
CTIO
N F
AC
TOR
rEFlECtions
sCratChEs dust
WatEr dropsdeFeat the 5 enemiesoF clear
Vision
smudgEs
* Prof. José Sahel receives no compensation in a private capacity for the validation of these protocols.
*** Percentage of positive evaluation (5 or more out of 10) - study conducted by independent third party (n=100 wearers) - France,2011.
**
so saFe so clear
hydrophobic
sunprotection
hydrophobichydrophobic hydrophobic
eVerydayprotection
* *
* 25 for all Crizal Forte UV and Optifog with Crizal Sun UV lenses, except with Essilor Orma®1.5E-SPF=10.50+forallsunlenseswithCrizalUVandOptifogSun.** UV protection measured with E-SPF, a new index developped by Essilor, endorsed by independent 3rd party, certifying the global UV protection of a lens. Best E-SPF for Crizal Forte UV and Optifog with Crizal UV lenses compared to anti-reflective clear lenses with equivalent material.
best uV protection....
all year long .**
50+ E - S P
F
EYE-SUN PROTECTIO
N F
AC
TOR25
E - S PF
EYE-SUN PROTE
CTIO
N F
AC
TOR
SUN LENSESCLEAR LENSES