you could try something similar with a 2nd view overlaying the first ( with an alpha transparentcy to teh view

i tried something similar a while back by placing 2 view cameras ( left and right of the center of view point) which thier views overlayed the main view. then all 3 views rotated to focus at one particular spot ( used a trace to simulate varing distant focal point)

rather like how our bifocal eyes work

you can even then tweak the bluring view arc for more distorted stretch