The Alberta Lens™ 2 
The Alberta Lens™ 2 contact lens material is suitable for a variety of patients who require extended hours of daily wear. Due to sufficient rigidity and high transmissibility of oxygen, the lenses allow the eye to maintain its metabolic function without inducing corneal edema or spectacle blur. These materials are designed from wettable, cross-linked siloxanyl copolymers with others and possess optimum properties for gas permeability, wettability, stability and durability.

The Alberta Lens™ 3
The Alberta Lens™ 3 contact lens material is uniquely designed for problem patients who are unable to wear a regular gas permeable lens. The Alberta Lens™ 3 material is structured from several precisely refined siloxanyl monomers and copolymerized with others to enhance gas permeability while retaining essentially the same wettability and stability features as that of the The Alberta Lens™ 2 material. This material is suitable for extended hours of daily wear.

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The Alberta Lens™ N 
The Alberta Lens™ N contact lens material is a first in the generation of fluorocarbon-siloxanyl copolymers. The incorporation of fluorocarbon and siloxanyl groups in the matrix of the copolymer plastic enhances high oxygen permeability. Its teflon-like, non-adhesive properties are resistant to protein and lipid bond deposits. The surface of the lens is uniquely designed to possess good wettability by the combination of basic and acidic wetting agents. It is very comfortable and designed for patients with high oxygen permeability requirements.

The Alberta Lens™ SM2
The SM2 contact lens material is designed from the same monomers as The Alberta LensS material except, it is more durable and is more suitable for multiple applications for sphere and toric lenses*. The SM2 material also contains a UV absorber which absorbs UV light in the region of 290-360 nanometers; the UV light in this region is the most damaging to human eyes. Contact lenses made from the SM2 material are adaptable to a wider spectrum of lens applications.

The Alberta Lens™ S
The Alberta Lens™ S contact lens material is the "state of the art" generation in contact lenses. This is a patented polysulfone copolymer material with high oxygen permeability and extremely good wettability and stability. The material is uniquely designed to block damaging light in the region of 290-360 nanometers (ultraviolet) to prevent the creation of cataracts. Because polysulfones are highly biocompatible with human body tissue, a lens from polysulfones is very comfortable on the eyes from the initial moment of wear. This material is designed to resolve the problems of even the most sensitive eyes.

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The Aquasulfone Lens™
The Aquasulfone Lens™ is uniquely designed from a sulfone monomer and a siloxanyl methacrylic monomer of the type that when immersed in an acidic environment, produces a layer of HEMA on the surface of the finished lens. This material has been designed by marrying the most biocompatible monomer (sulfone) with the most wettable monomer (HEMA) which is produced by hydrolysis on the surface of the lens. Due to its biocompatibility and wettability The Aquasulfone Lens™ material shows its superiority on the patient's eyes. The excellent wettability of this material provides a cushioning effect resulting in greater comfort to the patient. This rigid gas permeable material produces high quality lenses providing sharp optics and visual acuity.

The Aquasil Lens™
The Aquasil Lens™ is produced from a unique type of siloxanyl methacrylate monomer which, when immersed in an acidic environment, produces a layer of HEMA on the surface of the finished lens. In The Aquasil Lens™ the hydroxyl groups of HEMA are permanently bonded to the polymer plastic which ARE NOT REACTIVE. Please note the silicone monomer used in the construction of The Aquasil Lens™ is exclusively patented by Progressive Optical Research Ltd. for its application in contact lenses.

The Aquasil Lens™RSP
The The Aquasil Lens™RSP contact lens material is designed by copolymerizing oxygen permeability agent monomers, hardening agent monomers, wetting agents and cross-linking agents. The distinguishing feature of the RSP material is that it employs two wetting agents - one acidic and one basic. These wetting agents are copolymerized into the matrix of the polymer to give a balanced pH surface of the lens while increasing wettability for the desired comfort. The technologically advanced design of the material gives stability to the lens.

The Aquasil Lens™PS
The Aquasil Lens™PS is the highest oxygen permeable material that we produce. It is designed from the same monomers as the The Alberta Lens"S" except the composition of the monomers is uniquely combined to give high oxygen permeability with the Dk in the range of 93. This material is very effective for patients who require high oxygen transmissibility through the lens and is especially suitable for high plus lenses. The Aquasil Lens™PS material does not contain a UV blocker; however, upon request, it can be custom made with a UV absorber. The biocompatibility of polysulfone monomer in The Aquasil Lens™PS gives exceptional comfort to the user.

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©1995 by Progressive Optical Research Ltd.