A
sample eye prescription is shown below.
Given this information, can you find out the nature...
Sphere - indicates to nearsighted or farsighted Cylinder & Axis indicate astigmatism. SPHERE CYLINDER AXIS ADD OD stand for oculus dexter" and indicate the right eye. Os stand for oculus sinister and indicate the left eye op +4.50 os +4.50 -0.25 -0.50 010 120 +2.25 +1.75 PUPILLARY DISTANCE: PD=58 PD - (pupillary distance, or distance between the centers of the two pupils between the eyes) This measurement is ADD refers to an additional prescription required essential to designing glasses that comfortable to wear for close focus. This indicates bifocal lens or and optically perfect. IF THE DOCTOR HAS NOT SUPPLIED THIS INFORMATION progressive lens. If ADD is not filled out it means YOU CAN EASILY MEASURE THIS YOURSELF or HAVE A FRIEND MEASURE FOR YOU. SIMPLY FIND THE CENTER POINT OF EACH you have SINGLE VISION OF YOUR PUPILS AND MEASURE THE DISTANCE FROM THE CENTER OF ONE PUPIL TO ANOTHER. YOU CAN LOOK IN THE MIRROR OR HAVE A FRIEND MEASURE FOR YOU