What Is Prism: Watch a detailed, illustrated, explanation of how and why a prism is used to correct problems with vision.
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For optician training or ABO NOCE study, here is a big-picture overview of what a prism is and what a prism does. This video lesson shows you how you can use the predictability of prism to alter the position of an object as it is perceived by our brain. This is a great lesson on basic prism theory and how prism is used in conjunction with prescription lenses to correct vision problems. It includes a brief bench session showing an actual ophthalmic prism at work.

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This video lesson is sponsored by 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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