I've had to endure wearing eyeglasses most of my childhood and all my adult life. To be very honest, they have been a pain in the ass the whole time. They slide down your nose, catch on things in tight spaces or just fall over the side. I've just forked out some big bucks on all singing, all dancing titanium frames with spring-loaded hinges that flex in 4 axis and have vari-focal lenses. Good stuff and I SHALL remember to swap them over when antifouling! The joyous part of wearing specs? Well okay when with an angle-grinder or airhose at a pinch, but not great. Always put proper protection over them when you can. The down side? Jumping into a Zodiac in Tahiti and watching one of your lenses wibble to the bottom of the harbour, bumping into the owner for 2 weeks while blind and him sending his 737 private jet 8000 miles to go and pick-up some new ones for you. Anyone else have issues with their eyeglasses?
Having worn glasses since I was five, I'm pretty much used to them, don't know what it's like otherwise. I did learn long ago to have a spare pair, which I have always had. Only time I've lost a pair though was years ago, I decided to water ski. Now, I always worn them skiing but that day I didn't have an elastic band with me. No big deal I thought as I hadn't fallen in at least three years. Well, I fell, glasses sank in 70' of water.
Maui Jim makes great prescription sun glasses. Try on various sets to find one that fits perfect and order a set of prescription ones. Mine fit so well, I don't need a strap or anything and can tilt my head straight down and shake it from side to side and they don't move. The USCG requires a Captain that needs eye glasses to always have a secondary set on them for the reason you stated.
Maui Jim also have a great after sales support service. I have a pair that has had the hinges break 3 times since I had them which is now approaching 14 years, they have always replaced the parts for free, one time I broke a lens and this was the only thing I had to pay for.
I've just reached the point where I can't pass 20/20, and will have glasses on my license after my next exam. I need near and far correction, contacts alone aren't going to cut it. I've gotten a prescription and tried a few pair, everything is a compromise. I hear progressive bifocals are something you just need to get used to, so far I prefer the lined bifocals. I can get by with just cheaters during daylight, but at night need distance correction as well. I'll hang onto the pairs I don't like to meet the two pairs requirement. In the engine room, safety glasses with cheaters in the bottoms of the lenses are an absolute must. Cheap too. I even wear them on cloudy days, and I just tried a tinted pair for sun, they actually work really well and don't look bad at all. Cheap enough I'll keep a few pair in my bag.
My bad... I just re-read his post, got it the second time. We need a "facepalm" smiley for when I read the forum while dealing with a headache.