OD & OS
OD means right eye, OS means left eye
SPH
Shows your eyeglass prescription strength
CYL
The correction value required for astigmatism.
AXIS
The angle at which that astigmatism must be applied.
IPD
The distance between your pupil centers
ADD
Extra magnifying power for the bottom section of multifocal lenses
UNDERSTANDING YOUR PRESCRIPTION
Got a prescription from a previous eye exam? Perfect — you can use that right here. Those numbers might look confusing at first glance, but no worries. We've broken them down for you above.
