[alexbock]

Producing a non-inverted image with only two lenses per eye and no additional prisms implies a Galilean telescope with a convex lens as the objective and a concave lens as the eyepiece. Zeiss makes distance magnifying eyeglasses using this design and calls them teleloupe spectacles:

https://www.zeiss.com/vision-care/int/eye-care-professionals...

If you're going to make your own, keep in mind that there will be a tradeoff between magnification and field of view.