Lots of great info here. Probably the most important thing to remember; as uk_elephant mentioned...ALWAYS bring a bottle of contact lens-specific saline solution or high quality artificial tears on your ride, a small contact lens case, and as other said...always wear close fitting UV eye protection. It's a good idea to apply some saline to each eye when you stop for a break (or every hour or so if you're not stopping) even if your eyes/contacts don't feel dry. It isn't just the bugs and grit that can cause problems....protein buildup between the lens and cornea can cause irritation too. Keeping the lens and cornea moist (even if they don't feel dry) and flushing out grit and protein can help avoid problems later. And for heavens sake...if you feel like you have a bit of grit or some irritation in your eye, stop and flush with saline. If that doesn't resolve it, remove the lens! I've seen too many patients who thought the irritation would "just go away", and ended up in real trouble. Wear your contacts, but know the care needed to keep your eyes happy!
~Sherry.
All vintage, all the time.
Falcon Black Diamond
Gitane Tour de France
Kuwahara Sierra Grande MTB
Bianchi Super Grizzly MTB