Does visual impalement entitle you to a blue badge? Genuine question - it has always been my belief that you get this for mobility reasons only but I, of course, could be wrong...
If you're registered partially sighted, then no, there is no automatic entitlement. However, if you are registered 'severely visually impaired', (which IIRC is classed as vision worse than 6/60), you are categorised as blind, and are entitled to one even though you can see somewhat.
With that in mind, with regards to someones earlier comment about two people getting out of a car in a disabled bay and going jogging - my partner would be fine going for a jog with me, as I have become accustomed to mentioning kerbs, potholes, lamp-posts etc as we walk down the road. She wouldn't be able to do this by herself, though. She also hates walking with her white cane, (unless to/from work whilst it is dark), specifically because she hates feeling singled out/different, which I suppose is the whole point of this thread.
They can't park on yellow lines! It's only if there are no other spaces and they need it genuinely
Well, arguably, anyone who holds a blue badge would 'genuinely' need to park there... but nonetheless, they can park on yellow lines, subject to the necessary restrictions on loading/unloading, not causing an obstruction, and a time limit. They are even entitled to stop on double red lines to pick up or set down a disabled passenger.
An interesting side note for anyone reading this thread who holds a disabled persons rail card, it is also worth remembering that disabled passengers are also entitled to some discounts on rail fares without a railcard, which can sometimes provide a higher discount than with a railcard. For example, as myself and my partner rarely travel on advances, it is by far cheaper for us to gain a CON50 (50% discount) as a disabled passenger plus carer, on presentation of a certificate of visual impairment, than to receive a 34% railcard discount on the same (Anytime Day) fare. As such, and taking into account our regular travel pattern, my partner does not actually hold a DPRC, as it would not save her any money. It's just an interesting little side note on this conversation, as it's something I don't feel is very widely published.