The reusable Goldmann measuring prisms are distinguished by their optical and mechanical performance which allows for fast and reliable measurements in daily practice. They are largely handmade by experienced workers, and are checked for tight tolerances in weight, optical quality, durability and for consistent measurement results.
 
Goldmann tonometer prisms are manufactured at Haag-Streit in a process that has been fine-tuned over years. Experience, professional workmanship and intensive quality checks ensure highest precision for this important part of a diagnostic instrument that has become the gold standard for IOP measurement.