Spherical Equivalent Flashcards

1
Q

What is spherical equivalent used for

A

1) Determine if a spherical -cylinder Px matches SCL
2) used for the spherical lens which would concert a case of simple, compound, or mixed astigmatism into a case of equally mixed astigmatism

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2
Q

Spherical Equivalent Calculation

A

Add the sum of the sphere power with half of the cylinder power, and ignore the axis

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