If you already wear Reading glasses, you probably know what magnification you need. Then you should order the same magnification for Optx 20/20 HydroTac lenses.
If you are unsure of the magnification you require, you can ask your Optometrist or go in to a Pharmacy and try on some reading glasses, then take note of the magnification that best suits you.
Please note that ordinary post may take up to 7 business days. If you need your lenses sooner than that, we recommend you choose Express Post.