Resultant Prism: Three Notations - Methods and Calculations

There are 3 different methods opticians, optometrists, and optical labs use for notating prism. There is the resultant notation, the 360 notation, and the 180 notation. This week we cover each of the three methods, describing when each is used, how to use them, and how to transform prism prescriptions between the various notations.
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This video was produced in association with Laramy-K Optical
Laramy-K Optical is a digital uncut and coating lab unlike any other. The only exclusively uncut lab in the country; we provide our customers with independent, high-end alternatives to corporate brands. Through craftsmanship, technology, and independent, innovative vendors like Younger, IOT, A&R, and Quantum Innovations we offer our customers the Integrity portfolio of freeform lenses and coatings. Made in the USA, the Integrity brand is not a generic house-brand, but is the absolute best available, designed to give the wearer that “wow!” experience.
In addition to the digital line, we still offer conventional surfacing, including glass. Maintaining traditional equipment gives our customers vastly more flexibility in their dispensing, particularly when it comes to more difficult prescriptions.
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