I decided when it was time for new glasses  1.5 months ago
that I wanted to try contacts.
OMG, to be able to see so well without the frames surrounding
my eyes is amazing.
I love riding Genie and not having to worry about glasses fogging up.
I still have to have readers for small print as the stigmatism I have
keeps me from wearing the multi lenses.
That is ok with me as I have the freedom once again most of the time
from the frames.Now learning how to put them in and take them out, took some practice.
So if your one that wears glasses and have contemplated on how it would be to ride the bike and wear them, it feels great.
No more do I have to try and squeeze the frames between my helmet and side of my head.
I enjoy having the choice of whether to wear glasses or contacts..
OH and yeah if your wondering, I have lost one already, it was one
of the trial ones and had just picked up my prescription ones so it was
ok..
Oh mine are the soft ones and no I can't wear them 24hrs nor sleep in them. Mine can be worn for 12 hrs at a time.  

Can't wear contacts.... eyes are so burning I think they are about to bleed~

I wore contacts for a while. My right eye is dominant, so I wore the prescription for distance in the right and the prescription for reading in the left. Worked out OK after I got used to them.
Then I developed cataracts in both eyes. My big mistake was watching the surgery on YouTube, where they put the lance in your eye. Scared me to death, but I had them done anyway. Best thing since sliced bread. I took the kids on a field trip to the AGO and the colours blew me away. I had been on the same trip a few months before, and was gobsmacked the second time. It was like seeing the paintings for the first time.
Unfortunately I still have to wear glasses because I have a turn in my right eye and need prisms to correct it. OHIP will not pay for the surgery because it can be corrected with glasses. If I had the money, I would have it done anyway so I could be glasses free.
The upside is I can survive without my glasses if I have to.

I wore contacts for a few months. Probably close to a year,, Gotta admit, I looked better, the world looked better. I just never was able to get over that "Theres something in my eye" sensation. BUt that wasnt the real disqualifier. After years ( since 5th grade) of wearing glasses I have learned to USE my glasses as eye shields. Most people look away when dirt falls from the underside of the car. I look straight at it. Dirt bounces off the glasses. Sure, gotta clean them up, but when ya look away, dirt can go behind them.,& I Could Not unlearn that. I got dirt in my face & eyes all the time,, so, I went back to lenses.. Man, if you can wear contacts, theyre just BETTER,, they dont deteriorate, get scratches, frames dont get bent, they dont slide down the nose, contacts kick butt, BUT, theyre a PITA to take care of, I thot they were uncomfortable,

I was -11 short sight from the age of about 9, at age 48 or 9 I had LASIK surgery and threw the glasses away. I had another lot in 2009. It was successful. At 64 I may have to go back to glasses one day The LASIK was some of the best money I have ever spent in my life and you never realise how much you hated spectacles until you get rid of them.

I, too discovered contacts a few years ago (read "mid-life crisis") and it was true revelantion - sharper vision, brighter colors, great looking stylish sunglasses. I even learned to SCUBA, and discovered an underwater paradise. Then, the problems started. First, I discovered that any chemicals on my fingertips got transferred to and contaminated the lenses. Minor stuff (that doesn't completely come off with normal hand washing) like deodorant, hair gel, Grecian formula, cooking oil, and WD-40 resulted in some form of irritation or infection. Next, my Dr. changed to AccuVue Oasys, and I discovered I was allergic to HydroGel (almost went blind with that one!) After a year, no permanent damage, so I tried again. I have been far more cautious this time, but so far so good. They come out now at the first sign of any irritation. Hope this info may help you avoid any problems.