Help me choose some glasses

For night time rides, i use a cheapy interchangeable lens, They work well

I've tried a pair of PBK glasses with interchangeable lens but find they are really difficult to see with as the headlights from oncoming traffic blurs and distorts. I ride on busy A-roads with non stop traffic so guessing I need something polarised or similar.

Well i switch between the clear and the yellow ones depending on the conditions, but polarised might work

I know i wouldn't be spending that much of a pair though, infact my everyday cycling glasses didn't cost that

Endura Sword are good

I use a pair of these for the daily work commute:

http://www.outdoorgb.com/p/Cebe_Eyemax_Variochrom_Medium_Fit_Sunglasses/