11.07.2015 Views

Certified Paraoptometric Technician Review Course CPOT - Idaho ...

Certified Paraoptometric Technician Review Course CPOT - Idaho ...

Certified Paraoptometric Technician Review Course CPOT - Idaho ...

SHOW MORE
SHOW LESS

You also want an ePaper? Increase the reach of your titles

YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.

Optical CrossTo take an RX off the Optical Cross in Minus Cylinder Form:Start with the most plus sphere power (use your number line)Your axis is “married” to your sphereYour cylinder is the distance traveled between the sphere and number90 degrees away-4.50-2.50-1.25090+1.50121180These are twodifferent lenses031

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!