Day 5.3 - Transposing

Transposing an RX

By now, you probably have seen a prescription similar to this...

You might have even noticed that some prescriptions have a ‘+’ in the cylinder part of the prescription.  When you see these prescriptions they typically come from an ophthalmologist. Here’s how to transpose an RX.  (Remember the axis can only be between 1-180.)

Transpose the following prescriptions.  Remember if there is a negative cylinder, it doesn’t need to be transposed.  After you’re finished turn it into your trainer.(Use a blank piece of paper)