Prism Proficiency

Slide Number: 1 of 47 Total Slides
How often does an Rx require prism? The answer is… EVERY prescription. You may not think of it this way, but all lenses are made from prisms whether it’s written in the doctor’s prescription or not. Many optical professionals avoid prism verification and misunderstand tolerances. However, prism literacy is vital to every aspect of the optical profession. Lens inspection, frame adjustment, troubleshooting, optical centers, pupillary distances, and segment height measurements all require an understanding of prisms.

Learning Objectives:
Upon completion of this course, the participant should be able to: understand the anatomy of a prism; learn how to identify ANSI tolerances for prism; understand practical use of prisms in measurements and troubleshooting; grasp prismatic power and direction of different lens types.