Throughout the world, there have been several decades-old problems surrounding the typical mounting of eyeglass lens blanks to a metal assembly referred to as a block. Once the lens blank has been bonded to the block, the block and blank can be mounted in a variety of machines to create a prescription lens. The process is called blocking.

Blocking a lens blank is relatively simple in concept but, can introduce a number of problems. The NCRx blocker solves these problems with an innovative design that practically eliminates consumable usage while saving time and reducing the cost per lens!