Varilux Physio f-360?? - Essilor
Varilux Physio f-360?? - Essilor
Varilux Physio f-360?? - Essilor
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<strong>Varilux</strong> <strong>Physio</strong> f-<strong>360</strong>˚ <br />
High Resolution Vision with Fitting Conditions
The Best is getting better<br />
<strong>Varilux</strong> <strong>Physio</strong> continues to confirm its position at the top<br />
of the <strong>Varilux</strong> universal range of lenses and today there are<br />
millions of wearers worldwide using the lens.<br />
<strong>Essilor</strong> has once again broken new ground in terms of lens<br />
design with the introduction of a new personalised <strong>Varilux</strong>:<br />
<strong>Varilux</strong> <strong>Physio</strong> f-<strong>360</strong>°. The new lens takes High Resolution<br />
Vision to a new level thanks to personalisation of the design,<br />
with fitting conditions.<br />
The design features of <strong>Varilux</strong> <strong>Physio</strong> f-<strong>360</strong>° are still based<br />
on those of the original <strong>Varilux</strong> <strong>Physio</strong> lens and include two<br />
major concepts, Wavefront Management and Point by Point<br />
Twinning.<br />
Incident<br />
wavefront<br />
Refracted wavefront<br />
with aberrations<br />
Advanced Digital Surfacing<br />
Wavefront Management System<br />
The Wavefront Management System is a design approach that<br />
considers the wavefront of the beam of light entering the pupil.<br />
Quality of vision depends on how much the wavefront is distorted<br />
by both sides of the lens.<br />
Optimising the wavefront through the front and rear surface of the lens<br />
greatly reduces aberrations including higher order aberrations like the coma.<br />
Point by Point Twinning<br />
Calculation<br />
With both lens surfaces affecting the quality of the wavefront, in order to<br />
maintain optimal optical performance in all directions of gaze, <strong>Essilor</strong>’s<br />
patented innovative new calculation software exactly matches the front and<br />
rear surfaces at all points on the lens.<br />
Manufacture<br />
To ensure the optimal performance of very complex progressive surfaces<br />
across a very large prescription range, <strong>Essilor</strong> has developed an Advanced<br />
Digital Surfacing technology, an extremely accurate manufacturing process<br />
that creates the required surface.<br />
Design Summary<br />
This innovative approach to design and processing means that wearers using<br />
<strong>Varilux</strong> <strong>Physio</strong> can benefit from significant improvements in the three main<br />
visual areas:<br />
Distance vision<br />
The higher order abberation coma is controlled, delivering superior<br />
visual sharpness<br />
Intermediate<br />
The axis of unwanted peripheral surface astigmatism is controlled in<br />
a vertical direction, delivering wider areas of clear vision<br />
Near<br />
The power of the near zone is controlled over a larger vertical area<br />
giving greater visual and postural comfort.
Refining <strong>Varilux</strong> <strong>Physio</strong><br />
Studies have shown that the performance of any varifocal lens can<br />
vary significantly depending on the relative position of the eye and the<br />
spectacles. The position of the spectacles to the face of the wearer has<br />
an impact on the integrity of the wavefront passing through the lens and<br />
entering the eye and therefore on the overall visual performance.<br />
These studies highlight that all areas of the lens are affected; however,<br />
in particular, the near and intermediate zones suffer the most.<br />
Variations of the distortions depending on the position of the lens in front of the eye<br />
Fitting 1 Fitting 2 Fitting 3<br />
Fitting conditions affect all areas of vision but particularly near vision<br />
Standard varifocal lens<br />
without fitting conditions<br />
Poor alignment of clear vision<br />
zones in relation to<br />
the natural eye path<br />
<strong>Varilux</strong> <strong>Physio</strong> f-<strong>360</strong>°<br />
uses five fitting parameters<br />
Good alignment of clear vision<br />
zones in relation to<br />
the natural eye path<br />
LENS<br />
Calculation<br />
P.d<br />
Vertex<br />
Tilt<br />
Wrap<br />
F.Height<br />
Fitting Conditions<br />
o<br />
<strong>Varilux</strong> <strong>Physio</strong> f-<strong>360</strong>°<br />
High Resolution Vision with Fitting Conditions<br />
As fitting gradually moves away from the ‘standard measurements,’<br />
the performance of the lens gradually deteriorates.<br />
Pantoscopic angle (°)<br />
P1 P2 P3 P4 P5 P6<br />
-5 – -1° 0 – 4° 5 – 10° 11 – 15° 16 – 20° 21 – 25°<br />
To overcome the potential drop in performance of the lens, <strong>Essilor</strong> has<br />
included five fitting measurements to define accurately the position of the<br />
lens in front of the wearer’s eyes.<br />
By factoring these measurements into the design calculation of <strong>Physio</strong><br />
f-<strong>360</strong>° the areas of clear vision are aligned perfectly in relation to<br />
the wearers’ natural line of vision, from the distance zone through to<br />
intermediate through to near.<br />
Near vision point location<br />
Vertex (mm)<br />
V1 V2 V3 V4 V5 V6<br />
5-7 mm 8-10 11-13 14-16 17-19 20-22 mm<br />
PHY SIO<br />
f-<strong>360</strong>°<br />
1.7 mm<br />
Wrap angle (°)<br />
7 mm<br />
2,5 mm<br />
To achieve perfect alignment, the exact position of the near vision zone is<br />
tailored to the five measurements. Vertically, the position can vary between<br />
15-18mm, with the horizontal inset varying between 1.7 & 7mm.<br />
This exact positioning ensures the wearer no longer needs to adopt<br />
unnatural postural adjustments for near vision tasks. Postural comfort and<br />
sharp crisp vision are achieved naturally without constraints.<br />
W1<br />
W2<br />
W3<br />
W4<br />
W5<br />
0–8°<br />
9–13°<br />
14–17°<br />
18–21°<br />
22–25°<br />
15 mm<br />
18 mm<br />
17 mm
<strong>Varilux</strong> <strong>Physio</strong> f-<strong>360</strong>°<br />
wavefront analysis<br />
The Wavefront technology allows analysis of lens performance.<br />
With <strong>Varilux</strong> <strong>Physio</strong> f-<strong>360</strong>° the beam of light passing through the lens is<br />
virtually aberration free for any direction of gaze whatever the<br />
fitting conditions.<br />
Near Vision<br />
Intermediate<br />
Vision<br />
Wavefront analyses:<br />
performance of <strong>Varilux</strong> <strong>Physio</strong> f-<strong>360</strong>° compared with a regular progressive lens<br />
Far Vision<br />
0° = Fitting cross<br />
Pupil diameter 6mm<br />
Intermediate Vision<br />
19.5° downward<br />
Pupil diameter 5mm<br />
Near Vision<br />
34.5° downward<br />
Pupil diameter 4mm<br />
Regular lens*<br />
34°<br />
Features Benefits<br />
Near vision point Tailored<br />
position plus vertical power<br />
control<br />
Tailored alignment plus<br />
axis control and unwanted<br />
astigmatism<br />
Coma control<br />
3x times lower HOA<br />
(Higher Order Aberrations)<br />
Astigmatism control<br />
unwanted astigmatism<br />
lowered by 30% and axes directed<br />
vertically<br />
Power control<br />
Defocus lowered<br />
by 30%<br />
* Analyses done with comparison to <strong>Varilux</strong> Panamic, with Plano, add 2.00 lenses<br />
for the following wearing conditions: Vertex 12mm, Pantoscopic angle 2°, Wrap angle 14°<br />
Better all round performance<br />
<strong>Varilux</strong> <strong>Physio</strong><br />
f- <strong>360</strong>°<br />
<strong>Varilux</strong> <strong>Physio</strong> f-<strong>360</strong>° builds on the success of <strong>Varilux</strong> <strong>Physio</strong> but thanks to<br />
the personalisation of the design according to fitting conditions, the areas<br />
of clear vision correspond each wearer’s exact requirements. <strong>Varilux</strong> <strong>Physio</strong><br />
f-<strong>360</strong>° delivers:<br />
<strong>Varilux</strong> <strong>Physio</strong> f-<strong>360</strong>° - new innovation at every distance<br />
Wider fields of vision plus<br />
greater visual and postural<br />
comfort<br />
Enhances width of field<br />
Distance vision Coma control Superior visual sharpness<br />
0°<br />
Off target<br />
Target<br />
Off target<br />
Off target<br />
Target<br />
Off target<br />
Off target<br />
Target<br />
Off target<br />
Material Range Coating Transitions<br />
Orma ® 1.5<br />
Airwear ® 1.59<br />
Ormix 1.6<br />
Stylis ® 1.67<br />
Lineis 1.74<br />
* Maximum tint class<br />
+6.00 to -10.00,<br />
cyls to 6.00<br />
+6.00 to -10.00,<br />
cyls to 6.00<br />
+8.00 to -12.00,<br />
cyls to 6.00<br />
+9.00 to -12.00,<br />
cyls to 6.00<br />
+13.00 to -18.00,<br />
cyls to 6.00<br />
Crizal Alizé ®<br />
& Crizal<br />
Alizé ® with<br />
Scotchgard<br />
Crizal<br />
Alizé ® with<br />
Scotchgard<br />
Dispensing <strong>Varilux</strong> <strong>Physio</strong> f-<strong>360</strong>°<br />
Who is <strong>Varilux</strong> <strong>Physio</strong> f-<strong>360</strong>°suitable for?<br />
• All wearers requiring the best visual performance<br />
• Wearers with a distance Rx greater than ± 3.00D<br />
• All wearers with astigmatism<br />
Measuring the five parameters<br />
Specific measuring devices are required to obtain the additional parameters<br />
required for <strong>Varilux</strong> <strong>Physio</strong> f-<strong>360</strong>° lenses. These measurements can be taken<br />
using either a fully automated instrument such like <strong>Essilor</strong>’s Visioffice unit<br />
that can prove invaluable in terms of the speed and accuracy, or by using<br />
a hand held device.<br />
<strong>Essilor</strong> has developed a comprehensive hand held measuring gauge<br />
specifically designed to assist the ordering of <strong>Physio</strong> f-<strong>360</strong>°.<br />
Range and availability<br />
<strong>Essilor</strong> Tints*<br />
(full)<br />
<strong>Essilor</strong>’s comprehensive measuring gauge<br />
<strong>Essilor</strong> Tints<br />
(grad)<br />
Silver Shadow<br />
Clean Touch<br />
Y 4 Y N<br />
Y 3 N N<br />
Y 4 Y N<br />
Y 4 Y N<br />
N N N N
57-02-006 03/08<br />
Where to order <strong>Varilux</strong> <strong>Physio</strong> f-<strong>360</strong>°<br />
<strong>Varilux</strong> <strong>Physio</strong> f-<strong>360</strong>°can be ordered directly from <strong>Essilor</strong>, online through <strong>Essilor</strong>der, through a <strong>Varilux</strong> Specialist<br />
Laboratory or a Wholesale Glazing Partner.<br />
<strong>Varilux</strong> Guarantee<br />
As with all <strong>Varilux</strong> lenses, <strong>Varilux</strong> <strong>Physio</strong> f-<strong>360</strong>° is covered by the <strong>Varilux</strong> guarantee scheme.<br />
<strong>Varilux</strong> is a registered trademark of <strong>Essilor</strong> International. <strong>Essilor</strong> Limited, Cooper Road, Thornbury, Bristol, BS35 3UW.<br />
www.essilor.co.uk General enquiries: 01454 417100