OptoTech and ZEISS Vision Care Redefine Green Lens Production

New patented vacuum blocking process delivers faster and more sustainable ophthalmic lens production.

Wettenberg, September 18th 2025

After several years of joint development, OptoTech and ZEISS Vision Care are introducing a groundbreaking innovation in ophthalmic lens production: an eco-friendly manufacturing technology that replaces the conventional blocking process based on alloy or plastic adhesive.

OptoTech has developed two new key machines for this purpose: the fully automated IQ-Synergy Eco Blocker and the IQ-Synergy Eco Deblocker, with both systems already successfully tested and implemented at ZEISS Vision Care.

Benefits of Vacuum Blocking Technology

  • Reduction in process steps, streamlining the manufacturing time
  • Eco-friendly process that creates zero additional waste
  • Flexible integration with existing machine fleet and blocking platforms
  • Substantial cost and energy savings on consumables and machine operation

 “With the ECO Block Technology, we are achieving several goals at once: making lens production faster, more cost-efficient, and above all, more sustainable,” says Dr. Stefan Seifried, Managing Director of OptoTech Optikmaschinen GmbH. “Together with ZEISS Vision Care, we have succeeded in creating a true milestone for the industry.”