-> Err... it might be hard to find any kind of shade which puts you  
-> into night-light mode in broad daylight - and still allows you to  
-> see where you're going usefully... 
  
The polarizing magnet-ons that came with my prescription glasses seem 
to help a lot with the transition from bright to dim light. The place 
where I go is illuminated about as brightly as outdoors at night, with 
streetlights etc.. If I go there at night, I can walk in and not notice 
any significant change in brightness. But if I go in there on a sunny 
day, without using shades, I am essentially blind for quite a few 
minutes. I walk into things, and so on. But the shades (or the act of 
removing them) do help a lot. I won't say that I have perfect vision 
when I go inside and take them off, but it is good enough for me to 
function reasonably well. 
  
-> Glad to hear that - drops in peripheral vision can indicate the  
-> outset of glaucoma, I seem to recall... 
  
I know a lot about glaucoma! I suffere 
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