Unless you can get your layer height height down to small fractions of a wavelength of light (so like 50nm or less), I suspect the stairstep shape of your 3d prints will throw off all the optical properties. The tangent angle of the surface is more important (sensitive) than the overall shape of the lens.

You could get rid of the layer lines with post-processing like grinding/polishing, but grinding/polishing is how lenses are traditionally made anyway. Maybe you get to skip the first few steps (rough shaping of the glass blank), but you're still probably left with an optically inferior product.