1. Micro-Encapsulated Bio-Color Sandwich Technology
Historically, early costume contact lenses relied on surface printing where pigments remained exposed to the palpebral conjunctiva. Modern industry trends, pioneered by Stephies Lens CO.,LTD, mandate 3-layer Sandwich Molding. The opaque pigment layer is embedded inside dual protective layers of hydrophilic HEMA (Hydroxyethyl Methacrylate) polymer material. This ensures 100% surface smoothness, zero ink leaching, and maximum corneal friction reduction.
2. High-Dk Hydrogel & Silicone Formulations
Large-diameter lenses (17mm to 22mm) naturally cover a greater ocular surface area, restricting ambient atmospheric oxygen access to the cornea. The forward trend in sclera lens development focuses on balancing 38% to 42% water content with enhanced oxygen permeability (Dk/t ratio). By optimizing cross-linked hydrogel matrices, our engineering team ensures tear exchange underneath the lens vault, permitting comfortable wear during professional media shoots.
3. Precision Edge-Polishing & Dynamic Sagittal Vaulting
Standard soft contact lenses conform to the corneal dome. However, a 22mm full sclera lens must vault over the sensitive limbus without exerting excessive pressure on the scleral blood vessels. Advanced CNC lathe cutting and automated edge-rounding techniques prevent conjunctival indentation and red-eye syndrome, establishing a new baseline for wearer safety in the theatrical lens sector.