Saw this on the bbc news website this morning. Three forces are starting it but hopefully it will catch on. Basically if you get pulled over, you'll have to do the 'read a number plate at 20 metres' test, like on your driver's test. If you fail it, they'll revoke your licence.
I know it's a drop in the ocean but it will hopefully make a bit of a difference. I've read so many threads on here from posters worried that their elderly relatives are going to cause a serious accident but refuse to give up their licence. (Not that the only people driving with poor eyesight are old, before anyone piles on to state the obvious, yes young people can have crap eyesight too, etc etc).
I spent 5 minutes the other day watching a very old, frail man GETTING IN to his car. Just the physical process of getting from pavement to driver's door, opening door, and getting into the seat took a full 5 minutes. Then when he did eventually pull away he needed two attempts as he crunched the gears the first time. There would be no way that this man would be capable of reacting quickly enough to avoid a crash/ hitting a pedestrian. I can't help but think that this kind of driver might get picked up by this new check, and be quite relieved about that!