A:Answer Hey Baigo!
The displays come with a prescription option that allows -4.00 to +4.00 range and in regards to fine tuning the display within the glasses, it's not possible due to the way they are manufactured.
If you're interested in purchasing these glasses or you want to find out more information about them, you can schedule a demo session at your local authorized retailer and you can ask your questions to the specialist who is doing your demo and they'd be happy to give you a detailed answer!
