Smart Silicone™ chemistry

Smart Silicone™ chemistry is a unique chemical structure that’s exclusive to CooperVision MyDay® daily disposable contact lenses. It eliminates the need to compromise between breathability and comfort when recommending a 1 day lens.

MyDay daily disposable lenses feature Smart Silicone chemistry.

How it works

Smart Silicone™ chemistry shapes silicone into a network of channels that are much more efficient at delivering oxygen through the lens, so less raw silicon is needed for optimal oxygen permeability. This leaves room for more hydrophilic material, creating a lens with the best of both the hydrogel and silicone hydrogel worlds.

MyDay lens with Smart Silicone chemistry (Dk/t = 100)

Traditional 1 day silicone hydrogel lens (Dk/t = 100)

Smart Silicone™ chemistry transports oxygen so efficiently that it requires less
raw silicon (only 4.4% content), leaving more space for hydrophilic material.





The oxygen-carrying channels created with Smart Silicone™ chemistry consist of long-chain silicone molecules and highly compatible, hydrophilic material. This allows these microscopic channels to remain tiny—smaller than the wavelength of light—and to be evenly distributed throughout the lens, resulting in efficient movement of oxygen molecules with less overall silicone content.

Unique characteristics of Smart Silicone™ chemistry

Lens property

The Smart Silicone™ patient benefit

Long silicone chain

Up to 4 times the oxygen transmissibility of a hydrogel daily contact lens

100% corneal oxygen consumption1 to promote clear, white2 eyes

Hydrophilic nature

Optimal water content, natural wettability, and excellent compatibility with other water-loving materials

Inherently wettable, without coatings or surface treatments, for extraordinary comfort

Less silicone

A lower modulus

Soft and flexible to enhance comfort and fitting versatility

1 Brennan NA: Beyond Flux: Total Corneal Oxygen Consumption as an Index of Corneal Oxygenation During Contact Lens Wear. Optom Vis Sci 2005
2 High oxygen transmissibility promotes clear, white eyes

Hall B, Jones S. Clinical performance of a monthly lens and patient comfort. Contact Lens Spectrum. December 2000.
4 A prospective, single-center, double-masked, contralateral eye, randomized, daily wear, one day non-dispensing study. 21 subjects. A gravimetric method was used to determine the lens water content and dehydration during the 12 hours of lens wear.