Locate the prescription date and patient information on the page
Find the right eye (OD) and left eye (OS) sections
Read the SPH (Sphere) value for each eye
Read the CYL (Cylinder) value for each eye
Read the AXIS value for each eye (usually 0–180 degrees)
Read the ADD value (near-vision add) for each eye if present
Read PRISM and BASE (if present) for each eye
Read the PD (Pupillary Distance) or “Distance PD” and “Near PD” if listed
Note BC (Base Curve) if listed
Note DIA (Diameter) if listed
Note the lens type/material (e.g., single vision, bifocal, progressive) if listed
Check for additional notes such as “SV,” “PAL,” “Progressive,” “Toric,” or “Multifocal”
If the prescription includes multiple pairs (e.g., distance and near), match each set to the correct eye (OD/OS) and use-case
Record values exactly as written, including plus (+) or minus (−) signs