Perfect eyesight

I have been short-sighted since I was about 22, becoming slightly more so over the years. I can see clearly without glasses for about 3½ foot and so wear them for driving or when I want to see detail on the television.

Within a day or two of starting the Metformin, I noticed an amazing side-effect. Strangely my eyesight became absolutely perfect. I could gaze out of the office window and see mesmerizing details of the London panorama. We went to see a foreign film and for the first time in, literally, decades I could read subtitles and enjoy the film in crystal clear resolution without my glasses. It was a side effect my GP could not explain but I had found some accounts on discussion groups about diabetics with the same temporary experience.

Sadly it was indeed a temporary adjustment, my superman-like ability has now faded away after a few weeks. It does however make me wonder; if Metformin has this effect on eye, then why can't pharmacy companies come up with a drug to "cure" short-sightedness? Any venture capitalists out there interested?