Which of the following is a property of Silicone-Acrylate lenses?

Silicone-Acrylate lenses are specifically designed to leverage the advantageous properties of both silicone and hydrogel materials. This combination results in lenses that possess improved oxygen permeability compared to traditional hydrogels, which is crucial for maintaining the health of the cornea during wear. The inclusion of silicone allows for more efficient oxygen transfer, while the acrylate component enhances comfort and flexibility, making these lenses suitable for extended wear.

Other properties mentioned, such as being rigid and non-permeable, are characteristic of older rigid gas permeable lenses, which differ significantly from the properties of silicone-acrylate lenses. Similarly, the notion of flexibility and porosity does not accurately capture the benefits of silicone-acrylate. Lastly, while some silicone-acrylate lenses may contain water, they do not possess high water content like pure hydrogel lenses, which can sometimes lead to dehydration and discomfort. Thus, the combination of silicone and hydrogel properties in silicone-acrylate lenses is what makes option C the correct choice.