I can't see any images in your post but that could be due to Norfolks stone age internet!
I have presciption sunglasses in a wrap around style from a web based company called, I think, Optilabs. They do various sports sunglasses. I have had them for a couple of years and I am really happy with them.
One thing that you may find is that high street opticians are reluctant to give you the details of your prescription knowing that you are going to buy glasses from someone else despite the fact that you have paid for it. Make sure they give you the measurement between your pupils as this is not a standard part of the prescription but is required when making up the glasses.
Glyn