Reward for lost Kraken!
Join Date: Apr 2006
Thanked 131 Times in 128 Posts
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Yes, the weight of glass can be a problem. But a properly fit frame and nosepiece can help with that, and plastic simply can't deal with abrasion. Kinda the same question as what kind of sails and hull form you want, right?
"I have better than 20/10 vision and can not wear plastic lenses as the distortion gives me a splitting head ache." You've been mislead. Plastic lenses DO NOT have any different or greater distortion than glass ones. CHEAP lenses will usually be plastic, and cheap lenses poorly fitted will have distortion. Most of the chains hire cheap and cheap opticians often make small mistakes in correctly fitting lenses, i.e. if you have any astigmatism, the lens must be centered and rotated "just right" and that's still something of an art, not done by a magic machine.
A lot of folks who wear glasses are simply "easy" customers who never notice sloppy lenses. But last time I asked, an Rx for lenses was only accurate to 1/4 diopter--by all regulations. So if your Rx calls for -1.5 diopter, your glasses can actually be -1.25 to -1.75 or anywhere in between! How close they will actually be, varies with the supplier and what your eye store will accept.
Polarized in an Rx can be expensive, since the polaroid "layer" can't be ground into. And in any heavy Rx, glass sunglasses can be problematic because the glass is thicker (and way darker) at the edges because of that. But all of that is something any good optician/opthamologist should be able to go over with you.
I looked into a couple of the low-pried online vendors but a quick look at their frames turned me off. None of them matched the dimensions for the bridge, temple, and centering on my rx. The ones I saw all used "standards" i.e. rounded off to keep inventory down. Like ordering a shirt in s-m-l-xl instead of ordering it by collar and sleeve size. Fits some, but not this picky eyewear customer.
(Plastic, unhappily, with Bounty and Windex.)