I sail with contacts- it took me a while to get used to contacts- but wearing them over 10 hours a week can help keep your eye from changing prescription according to my eye-MD. I have the new ones that have built in bifocals so I can see small things like the watch. I wear cheap polarized glasses over them- my local boating store (maybe west) had great ones -2 for $20. I wear the contacts swimming too- the cheaper daily wear ones- you can't see up close as well but it beats not seeing at all- especially those of us who sail in salt water.

John R.