Standard plastic lenses
Even standard glass lenses show a significant thickness saving for this
particular prescription. However the glass is nearly double the weight of
the plastic! Fortunately there are a number of manufacturers of high-index
plastic lenses. These still give the thickness saving, but without the additional
weight penalty. |
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'Cutting through' the lenses helps to show which lens option
will provide the best cosmetic effect for the particular frame shape.
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