Zwitterionic Material "SIB"
"SIB" stands for SEED Ionic Bond, and ensures biocompatibility. Every pair of SEED PURE series contact lenses is made from original "SIB" material. It contains both positive and negative ions, resulting in electrical stability. This stability keeps out dust and impurities, while ensuring high water content.
Zwitterionic material, "SIB" is an original hybrid material of SEED. It has the advantages of both non ionic low water content lenses, which are highly resistant to deposits and stable to the environment, and high water content lenses, which allows for a high level of oxygen permeability.
SEED's unique "Dynamic Prism Ballast" design constitutes three designs, namely, the "Upper Portion Slab-off", Prism Ballast Design and "Adjustable Parametric Design".
* Alginic Acid: Natural moisturising ingredient extracted from seaweed and kelp.