Zwitterionic Material, SIB
The zwitterionic material, SIB is SEED's original material with superior biocompatibility, similar in structure to protein which is a basic constituent of a human body by containing both positive and negative ions. The features of SIB are described below in terms of soft contact lens materials.
* "SIB" stands for SEED Ionic Bond.
"SIB" is a material with positive and negative ions bonded, and no apparent electric polarization.
Existing Soft Contact Lenses
SIB is an original SEED material incorporating the advantages of existing lenses.