A2Vision Crest
Crest was designed with the patient’s comfort in mind. It has low overall astigmatism with
smaller rates of change which provides fast adaptation and fabulous patient comfort.
This high level of comfort is combined with excellent distance and wide intermediate areas.
The ideal design for first time wearers of progressive lenses..
The ideal design for first time wearers of progressive lenses.
Design Features
Comfort
Smoothing of the lens design with reductions in the severity of the transitions creates a more comfortable user experience and reduces patient rejection..
Variable Decentration
Enables the use of smaller diameters, reducing the lens thickness for plus power lenses while also decreasing waste and generating times.
OptiEdge
Calculations are made to ensure full prescription in the central area of the lens, while a blended region is applied to the edge for minimising material thickness. Improves appearance of higher powered minus lenses by flattening their outer edges and making them lighter and thinner. For plus power lenses, the advantage of OptiEdge is a reduced centre thickness and weight of the lenses.
Addition Range
0.75D to 3.50D
Indices
Full range of indices
Corridor Range
12, 14, 16 and 18mm
Power Range
+18.00D to -20.00D, up to -8.00D Cylinder
Limited by machine’s capability
