pdf...

http://psilab.ucsd.edu/publications/58.%20OE%20Telescopic%20...

The article mentions macula degeneration, which my grandpa has. He would really benefit from a contact lens like this.

Did evolution produce such a lens in any species? (apart from this one)

Yes the ways eagles have their eyes shaped lets them see things zoomed in.

An eagle's focal range capability gives a similar outcome but works nothing like this lens.

[2013]