Thanks for the question.
We provide Frame Only options for those without a prescription, so you can have the lenses installed by a local optician. Eyes are precious and irreplaceable, so it is highly recommended to have an eye test at least every 2 years to be sure of your own prescription.
There unfortunately isn't a way for us to determine your prescription without the actual details, so please do visit your local eye doctor for assistance with this.
If you require any further help, feel free to reach out to our support team at firstname.lastname@example.org