Abstract
The purpose of this study is to design the progressive addition hard contact lens for myopic presbyopia patients by using the multi-configuration function in ZEMAX optical design program. The multi-configuration settings consist of four ranges, which are infinity, 2000mm, 1000mm and 400mm. So, the myopic presbyopia patients are able to see clearly under the four different fields of view after wearing progressive addition hard contact lens. Using the methods of multi-configuration and the free form surface; it could correct the -3.00D at the infinity and -1.0D at the near vision of myopia presbyopia, and the Modulation Transfer Function (MTF) value can reach above 0.3 at 30lp/mm. And super progressive addition hard contact lenses are designed.
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