Gas Permeable

GP Optimum

Contamac's Gas Permeable (GP) materials provide the most comprehensive range of properties available in the GP market. Based on leading manufacturing technology, the full range of products offers materials that have the lowest wetting angles in the industry and exceptional oxygen permeability, producing the ultimate "on eye" wearing experience. A wide application to a variety of modalities and indications are available from Contamac GP materials

The Optimum range of premium GP materials offer the lowest wetting angles in the industry, outstanding oxygen permeability and high stability, 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 make this material ideally suited for a range of lens designs such as toric, multifocal, keratoconus or corneas with a high oxygen demand. Optimum is offered in four Dk ranges to ensure the eye care professional is offered the opportunity to select the ideal lens designs, in conjunction with gaining clinical control on the physiologic performance. Optimum offers excellent optical quality, durability and wettability, making this range the ideal choice for all indications, but the first choice for presbyopia correction for the speciality lab. Recent innovations have led to the Optimum material gaining FDA approval, for plasma treatment to enhance surface wettability. This enables speciality laboratories to plasma treat GP lenses made with any of our Optimum range.

For further information on the Gas Permeable materials please email sales@contamac.com

GP Optimum technical information

Material Characteristics:

PropertyOptimum
Classic
Optimum
Comfort
Optimum
Extra
Optimum
Extreme
ClassificationFocon III 2Focon III 3Focon III 4Focon III 4
FDA ApprovedYesYesYesYes
USANRoflufocon ARoflufocon CRoflufocon DRoflufocon E
Receding contact angle (DCA)12636
Light Transmission>97%>96%>97%>94%
Permeability (ISO)
X10-11(cm2/sec)
(mlO2)/(ml x mmHg)
2665100125
Refractive Index1.4501.4371.4311.432
Shore D hardness83797577
Specific Gravity1.191.171.161.15
Handling tintsBlueBlue
Green
Grey
Blue
Green
Grey
Blue
UV BlockerOn requestOn requestOn requestOn request
Diameter12.70mm12.70mm12.70mm12.70mm
Thickness4.70mm4.70mm4.70mm4.70mm
Polishing compoundContapol 3Contapol 3Contapol 3Contapol 3
Blocking waxLow meltLow meltLow meltLow melt
Cutting speed7,000-9,000
RPM
7,000-9,000
RPM
7,000-9,000
RPM
7,000-9,000
RPM
Polishing speed3,500 RPM3,500 RPM3,500 RPM3,500 RPM

Manufacturing Consumables:

  • Contapol 3 Polishing Compound
  • Black Low Melt Wax
  • C-18c Beige Microfibre Polishing Cloth
  • C-18d Polishing Silk
  • Contasolve De Blocking Solvent

Accessories:

  • Optimum GP Lens Case
  • GP151 Double Opticase Blue/White
  • GP Double Mailers
  • GP152 Tamper Evident Vial
  • Rubber Suckers
Copyright © 2017 Contamac. All Rights Reserved. GLOSSARYEnquiries to: sales@contamac.co.uk
Copyright © 2017 Contamac. All Rights Reserved. GLOSSARYEnquiries to: sales@contamac.co.uk