ZEISS Group Test Center

Setting the standard for quality

The ZEISS Vision Care Group Test Center offers an extensive range of performance tests for lenses and other products.

  • Extensive range of performance tests
  • Adapted to the customer’s needs
  • Reliable test results

The ZEISS Group Test Center ensures optimum lens performance.

As one of the world’s leading providers of products and services in the optical industry, the ZEISS Vision Care strategic business unit combines ophthalmic expertise and solutions with a world class, international and well-established brand.

Our global network

The tests involve any one of more than 40 processes, performed at three sites in Aalen, Germany; Tijuana, Mexico; and Guangzhou, China. The processes can also be customised and adapted to the customer’s needs.

  • Aalen, Germany

  • Tijuana, Mexico

  • Guangzhou, China

Driven by customers’ needs and expectations.

Quality tests are essential tools in the ZEISS organisation, not only for manufacturing purposes, but also for research and development, benchmarking and troubleshooting processes. The laboratory in Aalen, Germany is accredited according to DIN EN ISO/IEC 17025 standards. Certain tests are within the scope of the accreditation and therefore promote a well-structured, standardised internal process landscape and more importantly, reliable test results.

Our tests

  • Bayer test

    The Bayer test is used to measure the scratch resistance (surface hardness) of spectacle lenses.

  • Heat test

    When exposed to heat, lenses and coatings expand and contract, causing a range of potential defects which can affect the optical quality of the lenses. This test is designed to assess the resistance of Anti-Reflective (AR) coated lenses to crazing due to exposure from dry heat.

  • Antistatic test

    The Antistatic test is used to check whether the spectacle lens will build up a static charge. The lens is cleaned with a cloth and held over small pieces of tissue paper. If those small pieces move, the spectacle lens is statically charged and not acceptable according to ZEISS Standards.

The ZEISS quality promise


  • Ophthalmic lens testing

    • Product performance
      • Regulatory testing according to various international standards
      • Material and coating durability
      • Mechanical stress imitation
      • Life cycle simulation
      • Chemical durability
    • Surface properties
    • Spectral properties
    • Design and power values
    • Solutions adapted to environmental conditions
    • Individualised solutions
  • Lab testing of spectacle frames according to DIN EN ISO 12870

    • Dimensional stability
    • Resistance to perspiration
    • Resistance to ignition (flammability)
    • Bridge deformation
    • Endurance
    • Resistance to optical radiation
  • Training for ophthalmic testing

    • Laboratory management training in preparation for DIN EN ISO/IEC 17025
    • Training for ophthalmic lens testing
  • Specialised additional services

    • Participation in round robin tests
    • Ballistics test as part of eye and face protection standards
    • Various optical product tests, e.g. lens wipes
    • Benchmarking in all categories
    • Internal audit according to DIN EN ISO/IEC 17025