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Silicone Hydrogel
Silicone Hydrogel

Optimum

The Contamac Gas Permeable Materials Offer:

  1. The lowest wetting angles in the industry
  2. A full range of oxygen permeability (Low, Mid-Range, High and Hyper-Dk)
  3. Excellent material stability
  4. Low specific gravity
  5. Outstanding manufacturability
  6. Plasma-friendly polymers

All of these features combine to deliver an excellent level of comfort in the full range of modern designs such as toric, multifocal and keratoconus in virtually any clinical situation, requiring any level of oxygen performance. The Optimum family 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%
Dk (ISO) 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

Please note: These are typical values. Always check the certificate of compliance supplied with the goods for the actual values of the batch.