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4D Technology: The Revolution in Personalization

The exclusive 4D Technology, only available on Varilux S 4D, takes the Sighting Dominant Eye into account in lens calculation to ensure instant reaction for the wearer. 4D Technology
By respecting the Dominant Eye’s leading role, the 4D Technology improves the reaction time of each wearer while maintaining good binocular field of vision.

The 4D Technology defines the binocular design to favor the performances of the lens in front of the Sighting Dominant Eye. Giving the priority to the Sighting Dominant Eye provides unrivalled binocular vision.

Reflex vision is now possible, even with progressive lenses.


Sighting dominant eye definition and role

Similar to how we are left-handed or right-handed our vision is also dominated by one eye: the Sighting Dominant Eye.


The scientific literature confirms the predominant role of the Sighting Dominant Eye in our vision. Indeed, the Sighting Dominant Eye plays somehow the role of directional guide for the other eye and triggers its vergence movement before the other, reaching the object of interest faster.


In everyday life, it is the Sighting Dominant Eye which arrives first on the target and also plays an important role in our perception of space.


Dominant Eye measurement

To automatically measure the Dominant Eye, a specific tool has been designed to be used with the visioffice: the 4D Tablet.


A protocol was developed. Your patient is holding the tablet, looking at the target through the aperture. The new Visioffice software automatically determines the Dominant Eye without any action required to the patient. A complete Visioffice update will be provided including the 4D Tablet.


Varilux S 4D Tablet visual


Finally, Varilux S 4D takes into account 15 parameters including the Dominant Eye that are measured in a few minutes with the Visioffice:


Dominant eye personalization stampings

The reaction time improvement proven by R&D experiments