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
2
Q
Spherical Equivalent Calculation
A
Add the sum of the sphere power with half of the cylinder power, and ignore the axis