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Right Eye (OD)

Sphere:


Cylinder:


Axis
- Not Required -

Near Add
Left Eye (OS)

Sphere:


Cylinder:


Axis
- Not Required -

Near Add
Required For

OR
Strongest Eye

Help & Advice
• Enter the values for sphere, cylinder and near add from the drop down menus, as they appear on your prescription for each eye. The axis value on your prescription can be ignored and is not required for this calculation.

• Make a decision as to what the reading glasses are required for, either for reading (near or close work such as reading a book, sewing or using a phone or tablet) or for using a desktop or laptop computer (intermediate).

• Also select what you feel is your strongest eye.

Please feel free to contact us should you need any further help.
No Prescription?
Should you not have a prescription available, your optician will also be able to tell you your ideal strength reading glasses either if they have your current glasses prescription on file or at the completion of an eye test.

Alternatively, as a good approximate guide to your reading strength please download and print out our eye chart which is in PDF format:

Download Eye Chart