Understanding your prescription is essential for choosing the right glasses.

Key Elements:

• Sphere (SPH): Indicates the strength of your lenses for nearsightedness (-) or farsightedness (+).

• Cylinder (CYL): For astigmatism, which requires correction for blurred or distorted vision.

• Axis: The angle of astigmatism correction.

• Add: For bifocals or progressive lenses, showing additional magnification for reading.

Prescription Types:

• Single Vision: Corrects for one field (distance, near, or intermediate).

• Progressive/Bifocal: Corrects multiple fields (distance and near).

Always ensure you provide the correct prescription to your optician, including any additional needs like anti-glare coatings or blue light filters.