I've got a prescription for contact lenses, and I'm going to buy them online as it comes out cheaper than buying them at the opticians (for the same brand) and at my opticians I have to set up a direct debit which I don't want to do.
Anyway, I'm up to the prescription bit on the website and it says base curve, diameter & power for both the left & right eye, with a drop down menu with different numbers. However, on my prescription, it doesn't say base curve, diameter & power, it says sph, cyl, and Axis. Which is which? The different words are where I'm stuck.
См. статью: I need an opticians help asap, or people with contact lenses?