Optimum

Optimum

Special Attributes

The Optimum range of GP materials offer the lowest wetting angles in the industry, outstanding oxygen permeability and high stability, all to achieve one goal – on eye comfort. Optimum is FDA approved for a full range of indications such as myopia, hyperopia, astigmatism and aphakia. The balanced properties of Optimum makes this material ideally suited for a range of lens designs such as toric, multifocal, Keratoconus or corneas with a high oxygen demand. The Optimum range of materials also has FDA approval for the enhancement of surface wettability through the use of plasma treatment.

Material Characteristics:

Property Optimum Classic Optimum Comfort Optimum Extra Optimum Extreme
Classification Focon III 2 Focon III 3 Focon III 4 Focon III 4
USAN Roflufocon A Roflufocon C Roflufocon D Roflufocon E
Receding contact angle (DCA) 12 6 3 6
Light Transmission >97% >96% >97% >94%
Permeability (ISO)
X10-11(cm2/sec)
(mlO2)/(ml x mmHg)
26 65 100 125
Refractive Index 1.450 1.437 1.431 1.432
Shore D hardness 83 79 75 77
Specific Gravity 1.19 1.17 1.16 1.15
Handling tints Blue Blue
Green
Grey
Blue
Green
Grey
Blue
UV Blocker On request On request On request On request
Diameter 12.70mm 12.70mm 12.70mm 12.70mm
Thickness 4.70mm 4.70mm 4.70mm 4.70mm
Polishing compound Contapol 3 Contapol 3 Contapol 3 Contapol 3
Blocking wax Low melt Low melt Low melt Low melt
Cutting speed 7,000-9,000 RPM 7,000-9,000 RPM 7,000-9,000 RPM 7,000-9,000 RPM
Polishing speed 3,500 RPM 3,500 RPM 3,500 RPM 3,500 RPM