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00071_Field_71.txt
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1997-10-28
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PLUS LENTICULAR DESIGNS
Most plus lenses are made in a lenticular design to decrease center thickness and enhance performance on the eye.
With a lenticular design there
is a front optic zone diameter
(FOZD), also called a front
central optic diameter (FCOD);
reduced optic; or optic cap.
The thickness at the edge of the
front optic is the junction thickness (j.t.).