DEFINITY™ progressive lenses are the only PAL that utilizes DUAL ADD® Technology, a patented, dual-surface, offset design which provides several distinct optical advantages:  a wider intermediate zone, the least amount of peripheral distortion of any PAL and a unique zone of correction called GROUND VIEW ADVANTAGE™. 

GROUND VIEW ADVANTAGE features a reduction in power which minimizes distortion and flattens the field of vision, giving wearers greater clarity when looking down. 

Another significant benefit of DUAL ADD and GROUND VIEW ADVANTAGE is that these advantages become more pronounced as add power increases.  As a result, DEFINITY remains the right solution for presbyopes as they age.

DEFINITY is the perfect lens for the active lifestyles of today’s presbyopes.  With the superior intermediate vision, DEFINITY makes computer use, driving or any other everyday activity more comfortable.  With clearer vision when looking down, DEFINITY makes going up and down stairs, playing golf or tennis, or navigating uneven surfaces easier.

To find out more information about DEFINITY, please visit www.DEFINITY.com.