The 4th Dimension of Optimization
Pupil dilation in low-light conditions increases the impact of higher-order eye aberrations leading to blurred vision - particularly at dusk, night, or on cloudy, rainy days.
Pupil-Optimized Correction takes into account changes in pupil size, the average spherical aberration of the eye, the patient's add power, and the patient's age to optimize the lens.
Exclusive US Technology
Data analyzed from over a million eyeglass wearers is used in a patented algorithm to calculate the optimization, making N+D4™ the only night and day technology in the US that does not require specialized equipment to prescribe.
epik™ N+D4™ is available as an upgrade to the:
epik™ Variable Series
sph -5.25 cyl -0.50 A 13º
Refraction with dilated pupil
sph -5.82 cyl -0.16 A 52º
When pupils dilate in low light, high order aberrations change the refraction resulting in blurred vision.
epik™ N+D4™ optimizes every viewing point on the lens for clarity at all distances in all lighting conditions.