If the power of a lens is - 4.0 D, then it means that the lens is a

power 4dPower of the lens (P) = 4 D. Refractive Index (r) = 1.5. To Find: The radius of curvature. Calculations: The following equation determines a lens's power: where P is the power ofMalaysia Live 4D Results for Magnum 4D, Sports ToTo, 4D88, DaMaCai 4D, Sarawak Cash Sweep & Sandakan 4D. Get inspired for your next buy. MY4D