Optical MathQuestion 92 of 100
A -6.00 D lens must produce 3 prism diopters. How far must it be decentered (Prentice's rule)?
a.0.5 cm (5 mm)
b.3 cm
c.18 cm
d.6 cm
Explanation
Decentration = prism / power = 3 / 6.00 = 0.5 cm, which equals 5 mm of decentration from the optical center.
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