Prescription Transposition Calculator
Convert an eyeglass prescription between plus-cylinder and minus-cylinder notation. The optical correction stays exactly the same.
1. Enter Prescription
Enter SPH, CYL and AXIS for your Right Eye (OD) and/or Left Eye (OS).
2. Choose Target Format
Select whether you want the result in Plus CYL (+) or Minus CYL (−).
3. Calculate
Click “Transpose Prescription” to convert the values while keeping the correction the same.
4. View Result
See your transposed prescription instantly in the selected notation.
1. Enter Prescription
Enter SPH, CYL and AXIS for your Right Eye (OD) and/or Left Eye (OS).
2. Choose Target Format
Select whether you want the result in Plus CYL (+) or Minus CYL (−).
3. Calculate
Click “Transpose Prescription” to convert the values while keeping the correction the same.
4. View Result
See your transposed prescription instantly in the selected notation.
Enter Prescription
Right Eye (OD)
Left Eye (OS)
Transposed Prescription
Right Eye (OD)
Left Eye (OS)
Frequently Asked Questions
What are Panto glasses?
Panto glasses are a classic eyewear shape known for their rounded-but-not-circular lenses, high bridge, and balanced proportions. The style became popular during the 20th century and is now considered a modern classic.
Are PantoGlasses suitable for prescription lenses?
Yes. PantoGlasses frames can be ordered with prescription lenses, including single vision and progressive lenses. They can also be ordered as frames only.
Can I use Panto frames as sunglasses?
Yes. Many PantoGlasses frames can be customized as sunglasses with tinted, polarized, gradient, photochromic, or mirror lenses.
Which PantoGlasses size should I choose?
Size 47 is our most popular size and fits most faces. Size 49 gives a slightly wider fit, while smaller sizes are better for narrower faces or children.
Can I try PantoGlasses before ordering?
Yes. PantoGlasses offers Virtual Try-On, so you can see how selected frames look before placing your order.
Can I order frames only?
Yes. You can order frames only and have lenses fitted later by your local optician. You can also order complete glasses directly from PantoGlasses with your selected lens options.
Ready to order your glasses?
Choose your frame, select prescription lenses, and enter your calculated values for single-vision reading or computer glasses.
