![]() A brief glossary of the terms covered concludes the section. Changing sagitta depth by manipulating lens diameter and /or base curve radius is presented. This course also includes a discussion of the relationship between sagitta depth and fit. The need for diopter to millimeter conversion is covered and a table is included. The parts of a contact lens are covered to include, optic zone, peripheral curve, base curve, junction zone, and radius of curvature. ![]() The uses, advantages and disadvantages of the lens materials are covered. Some basic terminology is discussed and the various materials from which contact lenses can be made are surveyed and placed into historical perspective. Covers the various contact lens designs to include scleral, corneal and semi-scleral designs.
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