Brief
Course Description
Basic
Contact Lens Design
This
course starts with a discussion of the various contact lens designs
to include scleral, corneal and semi-scleral lenses. Some basic terminology
is covered and the various materials from which contact lenses can be
made are surveyed and placed into historical perspective. The uses,
advantages and disadvantages of the lens materials are discussed. The
parts of a contact lens will be covered to include optic zone, peripheral
curve, base curve, junction zone, and radius of curvature. The need
for diopter to millimeter conversion is presented and a chart is included.
It also discusses the relationship between sagitta depth and fit. Changing
sagitta depth by manipulating lens diameter and/or base curve radius
is presented. The course concludes with a brief glossary of the terms
covered