Pharnorcia PEMA (CAS#:3683-12-3): Revolutionizing Contact Lens Performance

Introduction
Pharnorcia® PEMA (CAS#:3683-12-3), a high-purity ophthalmic material with the molecular formula C₁₂H₁₄O₂, has emerged as a cornerstone in advanced contact lens manufacturing. Its unique chemical properties and rigorous quality control enable the production of lenses that combine comfort, durability, and optical excellence

Key Material Properties

• High Purity & Safety: PEMA boasts ≥99.5% purity with minimal monomer residue, critical for biocompatibility and reducing ocular irritation during prolonged wear

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• Superior Flexibility and Oxygen Permeability: This material enhances lens flexibility, allowing optimal conformity to the cornea while maintaining high oxygen transmission. This combats dry eye syndrome (CLADE) by supporting natural tear film stability

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• Optical Clarity: PEMA’s inherent transparency ensures distortion-free vision, meeting the demands of high-definition optical applications

Performance in Contact Lenses
Lenses fabricated with PEMA exhibit exceptional user comfort for extended periods, even under conditions like prolonged screen use. Clinical feedback highlights reduced friction against ocular tissues, minimizing discomfort and wear-related damage

. Additionally, PEMA’s stability prevents deformation and degradation, extending lens lifespan

Quality and Industry Trust
Pharnorcia’s PEMA undergoes stringent international quality protocols, including audits by global leaders like Johnson & Johnson and Bausch + Lomb. The material complies with EU and U.S. medical device standards, with full traceability from raw materials to finished products

. Its scalability and cost-effectiveness further solidify its role in supply chains across 50+ countries, supporting over 1,000 successful shipments

Conclusion
As a trusted material for top-tier brands, Pharnorcia PEMA exemplifies innovation in ophthalmic science. By balancing advanced performance with stringent safety standards, it addresses modern needs for visual clarity and ocular health, positioning it as an indispensable resource in contact lens technology