PeterO wrote: ....>>>If it turns out that a VHF or GPS screen is harder to read with polaroid lenses then it would make sense to opt for tinted prescription glasses and to use cheap polaroid non-prescription sun glasses for negotiating rocks when its unlikely I'll need to read GPS or VHF. Does anyone have experience of using prescription sunglasses and whether polaroid lenses are a problem with LCD screens. Its not something I can test without buying prescription lenses as I can't read the screens in any case!<<<<< Years ago I would put polaroid flip-up clip-ons over my clear glasses when out in the sun but looking through so many reflecting surfaces was not the best situation and, besides being especially dorky, the plastic polaroid lenses scratched up rather quickly. For the last twenty years or so my everyday glasses are bifocals that darken in the sun. For skiing, kayaking, and some driving (when the sun is reflecting off of car rear windows and trim ahead of me) I have a pair of prescription polaroid sun glasses. With them it is hard to impossible to read the speedometer and gauges. I don't think you can get polaroid bifocals so reading or closer work requires me to lift them up too my brow for awhile. Of course, I still do that occasionally with the bifocals too (but not nearly as much as I had to do before bifocals). This is the best combination I've found and since my prescription is stable these glasses have only needed an occasional replacement of the nose pads. I'd get both frames identical so that if you did break a frame you could put your bifocal lenses into the other frame. I did this exchange with my old non-bifocal lenses when my bifocal frames were damaged. That brings up the main downside of the bifocals. I switch to the older non-bifocals I keep at the head of my bed if I want to watch some TV while laying in bed. With the bifocals you don't see distance well looking through the bottom of the lenses. Both pair are in kid's titanium metal frames that can take face plants and such while skiing without bending or breaking. Being nearsighted I like to have smaller lenses to cut the glass weight (that the lenses getting thicker out to the edges cause). So they are small for lightweight while still being real tempered glass (rather than polycarbonate) for the best scratch resistance. I also have floating retainers to hold them to my head better and float them if they do come off in the water. Years ago I lost a pair of glasses once when racing a skin on frame kayak Chris Cunningham had at the S. Lake Union wooden boat show in my street clothes. We hoped to beat all the rowing boats in a fun race using kayaks. We kept passing the leading rowboat on the corners and it would pass us again on the straightaways. At one point my choice was getting hit by a returning oar or making a radical draw stroke to move out of the way. I pulled the unfamiliar kayak right over during the draw with the unfamiliar paddle (that looked to me like plywood blades screwed on to a broomstick). I should have just grabbed my glasses as soon as my head hit the water but instead I tried to roll the kayak and the water ripped my glasses off my face in the process. *************************************************************************** PaddleWise Paddling Mailing List - Any opinions or suggestions expressed here are solely those of the writer(s). You must assume the entire responsibility for reliance upon them. All postings copyright the author. Submissions: PaddleWise_at_PaddleWise.net Subscriptions: PaddleWise-request_at_PaddleWise.net Website: http://www.paddlewise.net/ ***************************************************************************Received on Sun Aug 02 2009 - 23:42:17 PDT
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