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Ophthalmic Assistant

Category - Lensometry and Spectacle Skills

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What is the spherical equivalent of the following prescription: +2.00 +2.00 x 60

+2.00
-2.00
+3.00
-2.50

Explanation

Answer: C - +3.00

The spherical equivalent of +2.00 +2.00 x 60 is +3.00 This is derived by dividing the cylinder by 2
and then adding the cylinder to the sphere.

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