Ophthalmic Optics第 11 / 100 题
If the distance Rx is -3.00 D and the add is +2.00 D, what is the total power in the reading portion?
a.-1.00 D
b.-5.00 D
c.+2.00 D
d.-3.00 D
解析
The near power equals the distance sphere plus the add. -3.00 + 2.00 = -1.00 D in the reading zone.
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