Simultaneous Multifocal

Back Surface Aspheric Design

The Asphero-B is a simultaneous-vision multifocal design that combines a spherical front surface with a low-eccentricity aspheric base curve. 

This design provides progressive add power from the center of the lens to the periphery, offering a valuable alternative to the fitting challenges that can arise with concentric, tangential and crescent-segmented translating designs.

While this lens requires absolute centration to produce the simultaneous-vision effect, it produces good intermediate acuity.  As a result, this lens is often preferred by patients whose professions or lifestyles cause them to spend time reading computer screens.

Fitting success is also enhanced due to the comfort that is afforded by the Asphero-B's aspheric base curve.  

Diameters:      8.50 mm to 10.0 mm

Base Curve:    6.50 mm to 8.44 mm

Distance:         -20.0 D to +6.00 D

Add Power:     +0.75 to +3.00 D


Danker Laboratories

The RGP Multifocal Specialists

(800) 237-9641