As someone said earlier, this getting older is a right pain in the tailpipe. Had to chuckle a bit about the spare glasses thing though, I've had a couple of mishaps over the years between flying and sailing, such that I'm pretty careful about ensuring I have a second pair about now. Eg. prescription sunnies whipped off my face when I stuck my head out of a doorless Aerobat to check on line of sight below for an impending photo shoot, a weird wind tunnel effect behind a wraparound pair of non-prescription sunnies that whipped an old fashioned stiff contact lens clean off the eyeball in an open cockpit type and most recently, an older pair of glasses that fell apart after a stray reefing line gave me a wake up slap in the face. Trying to replace these with prescription sunnies didn't work well in the dark and I quickly relinquished the helm to someone who had a better chance of seeing the waves and then leading lights. The benefits of a multi crew environment.