For eyecare professionals

Varilux X series

Extended ranges of vision | White paper

Discover Varilux X series

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Near Vision Behaviour (NVB) personalisation aims

to ensure lenses are designed and tailored as closely

as possible to the wearer’s specific posture and behaviour during near vision work. The process involves two phases: first, the individual’s postural behaviour must be measured and analysed; second, a personalised design must be computed.

Thank you for your interest in Varilux X series personalisation.


Discover how Near Vision Behaviour parameter works and what you need in practice to measure.

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