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Opthalmic Frames

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Course Introduction
In this study, we'll survey the basic parts of the ophthalmic frame and discuss and summarize its various measurement criteria. We will then talk about both horizontal and vertical lens decentration, and determine the theoretical and actual minimum lens blank size based on frame measurements, pupillary distance, and other purely practical considerations. Some of the common frame materials will be surveyed with a brief discussion of the general characteristics of each. We will then present an outline of the various frame styles and bridge designs currently available with an emphasis on the importance of proper bridge selection. Overall frame selection will then be discussed using as chief criteria the shape of the face and the nature of the prescription.

As the last item in this session, final fitting will be covered. An excellent frame adjustment is one of the most important, yet least discussed aspects of dispensing opticianry. Although frame adjusting is a skill which needs to be acquired through practice and experience, there are certain basic principles which may be applied almost immediately and these will be studied in this portion. It includes a discussion of the fitting triangle, the various frame tilts and face forms along with the reasons for applying each. Finally, a summary of the various types of frame fitting problems and their solutions will be presented.

OK, let's get started on Ophthalmic Frames. If you've already been working with frames many of the items we're about to cover may be familiar to you. Even so, be sure to study this part of the course carefully to ensure a complete understanding of the subjects presented.

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