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Jul 2024

The Importance of Integrity Testing of Contact Lenses

The Importance of Integrity Testing of Contact Lenses

Non-destructive testing (NDT) plays a pivotal role in ensuring the quality and reliability of various products across industries. In the realm of contact lens manufacturing, where precision and safety are paramount, the VeriPac system stands out as a game-changer. This innovative technology revolutionizes the quality control process by offering a non-invasive means to inspect and validate contact lenses without compromising their integrity.

The VeriPac system employs advanced inspection techniques that eliminate the need for destructive testing methods, preserving the integrity of each lens while providing comprehensive analysis. By utilizing non-destructive methods such as Vacuum Decay technology, the VeriPac system can detect even the slightest defects or irregularities in contact lenses, ensuring that only products meeting the highest standards are delivered to consumers.

Challenges in Contact Lens Manufacturing

Contact lens manufacturing involves intricate processes to ensure the production of high-quality lenses that are safe and comfortable for wearers. Here are some of the challenges faced in contact lens manufacturing:

  • Material Selection: Choosing the right material is crucial. It needs to be biocompatible, allowing oxygen transmission to the cornea, and have appropriate mechanical properties to ensure comfort and durability.
  • Sterilization: Ensuring lenses are free from contaminants and microorganisms is essential to prevent eye infections. Sterilization methods must be effective without altering the properties of the lens material.
  • Quality Control: Maintaining consistent quality across batches is challenging. Quality control measures are necessary at every stage of production to identify and rectify any defects.
  • Regulatory Compliance: Contact lenses are medical devices, so manufacturers must comply with strict regulatory standards set by organizations such as the FDA in the US and the CE in Europe.
  • Cost-Efficiency: Balancing quality and cost is a constant challenge. Manufacturers need to invest in advanced technologies while keeping the production cost-effective to remain competitive.
  • Environmental Impact: With increased awareness of sustainability, manufacturers face pressure to develop eco-friendly materials and reduce waste generated during production.

Role of VeriPac System in Enhancing Contact Lens Manufacturing

VeriPac 410 is an innovative Container Closure Integrity Testing (CCIT) method, that uses force decay technology for non-destructive seal and leak detection for contact lenses. VeriPac 410 inspection technology platform integrates Vacuum Decay technology with a new force-based measurement system for enhanced performance. This advanced force decay technology can measure force by detecting the surface deflection of a package during a standard vacuum test cycle. By measuring the surface force of the package, the VeriPac 410 can not only identify defective packages but also perform leak tests on packages with minimal headspace.

The ability to inspect multiple packages in a single test cycle is one of the key features of VeriPac 410 technology. This capability streamlines evaluations, facilitating a faster processing rate for products. Furthermore, the system is engineered to identify the exact defective package or blister cavity, offering precise data to operators and quality control teams. The test results are quantitative, delivering a definitive PASS/FAIL determination. This eliminates any subjective interpretation from the evaluation process, thereby improving the dependability and precision of quality control measures.

Benefits of VeriPac 410 Technology

  • Non-destructive, non-invasive, no sample preparation
  • Non-subjective, accurate, and repeatable results
  • Capability to test multiple packages in a single test cycle
  • Identifies which package is defective
  • Simplifies the inspection and validation process
  • ASTM test method and FDA standard
  • Cost-effective with rapid return on investment

As contact lens manufacturing continues to evolve, the VeriPac system stands as a testament to the power of technology in driving progress and innovation. Its impact extends beyond the manufacturing floor, influencing the standards of quality assurance and setting new benchmarks for excellence in product inspection. With its proven track record of reliability and precision, the VeriPac system remains an indispensable tool for ensuring the quality and safety of contact lenses, ultimately enhancing the overall experience for consumers worldwide.

non destructive testing, container closure integrity, container closure integrity testing, ccit, cci technologies

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