Some drivers repeatedly find that the headlights of oncoming trains - usually S stock or London Overground trains - dazzle our vision. This can be uncomfortable and even painful, and obviously damages, albeit temporarily, our view of the track and any hazards ahead of us.
So, you might think that LU would make some simple modifications (and ask London Overground to do the same). But no - apparently, they can't come up with a 'business case' for it. Let's hope they can put together a business case to explain the compensation they may end up shelling out to drivers with damaged eyesight or victims of accidents.