I went for Optilabs about five years ago for a proper pair of prescription specs. They've been brilliant - and when an arm snapped late last year, they were able to replace them, no problem.
I have a strong involuntary eye reaction (according to the opthamology bods at Cardiff University, anyway) and after three or four attempts at fitting contacts over the years have resigned myself to specs and (at some point) laser surgery.
I've run Eassuns, Adidas Evil Eyes and Adidas Gazelles with prescription inserts for cycling and yacht and dinghy racing, and they all suffer from the same problem, more or less: moisture gets trapped between the two lenses. This can be a bit of a pain. Prescription lenses largely fix this, and the wraparound means I also don't get the problem with streaming eyes you mention, OP.
I'd happily recommend Optilabs - excellent bunch, and it's probably the best £180-odd quid I've spent on my cycling.
I should say I uses these every day for commuting, so they've been opened and closed twice a day almost every weekday for the last couple of years, as well as use on weekend rides. The lenses are still going strong, the transitions coating is fine, and, aside from one arm wearing out, the frames are pretty happy, too.
 Only downer is I can't use these for driving in strong sunlight, as the glass in car windows absorbs UV, so transitions coatings don't work.
Also, what BillOddie said about peripheral vision is really important - it was really noticable moving from inserts to fully glazed prescriptions, and a massive boost. I wouldn't say it made me faster (maybe it did) but it certainly made me ride more confidently.[/edit]