Classic Contact Lens Materials

 

O-Perm™ and O-Perm™-F Rigid Gas Permeable contact lens blanks, manufactured by Optical Polymer Research, Inc., are silicone-acrylate  or fluoro-silicone polymers having outstanding physical properties. They are dimensionally stable, stress free polymers scientifically formulated to meet the stringent requirements of the most demanding lens manufacturer and discerning practitioners. 

All OPERM™ (Sterafocon A) and O-PERM™ F (Oxyflufocon) products are supplied as precision 12.7 mm diameter by 4.5 mm blanks.  Locator tints available include blue, green, violet and a yellow "blue-blocker" sports vision tint.  F-40 also available in grey.

 

 Contact Lens Material Physical Properties

O-Perm™ 30		O-Perm™ 15	*
Diffusion Constant, DK:	35	Diffusion Constant: DK:	15
Refractive Index:	1.47	Refractive Index:	1.47
Shore D Hardness:	83	Shore D Hardness:	84
Wetting Angle:	< 25°	Wetting Angle:	< 25°

 

O-Perm™ F-60		O-Perm™ F-40	*
Diffusion Constant, DK:	62	Diffusion Constant: DK:	52
Refractive Index:	1.45	Refractive Index:	1.47
Shore D Hardness:	81	Shore D Hardness:	81
Wetting Angle:	< 20°	Wetting Angle:	< 25°

 

* Export Only