Shopify customisation

HI I require some customisation for my shopify site.

I require the adding optical lens and prescription options to the product listings. The options should be edited on one page and then selected for the appropriate products.

Here are some examples:
https://lookmatic.com/collections/men/products/ricky
https://www.glassesdirect.co.uk/basket/personalise/1/prescription/

I will be changing theme within a few months so these customisation should be transferable to one theme to another.

Thank you.