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Prescription sunglasses
Organichu
poopspeesRegistered User regular
poopspeesRegistered User regular
So I need prescription sunglasses. I've never owned them before. I stopped at the nearest place and listened to the sales pitch. I have a few questions.
1) I was told that some frames and lens shapes aren't conducive to RX'ing- too much of a curvature is contrary to an even lens whatever, sight image I guess. Is this true? How do I know before deciding on frames if they're good targets for medicated lenses?
2) Are the gradient lenses any less protective? It seems like a nice feature to be able to glance down and get a true-to-color view, but are these going to be less useful in helping to protect my light-sensitive eye?
3) Can I purchase any popular frame and have the lenses RX'd elsewhere?
I know these 'order online and try on for free' websites are all the rage but a) I don't know whether they're all that great; their RX'able sunglasses sections seem much smaller than the rest of their catalog and b) a lot of glasses shops offer discounts on frames if you purchase there after your examination.
Thanks for any info you can provide!
1) I was told that some frames and lens shapes aren't conducive to RX'ing- too much of a curvature is contrary to an even lens whatever, sight image I guess. Is this true? How do I know before deciding on frames if they're good targets for medicated lenses?
2) Are the gradient lenses any less protective? It seems like a nice feature to be able to glance down and get a true-to-color view, but are these going to be less useful in helping to protect my light-sensitive eye?
3) Can I purchase any popular frame and have the lenses RX'd elsewhere?
I know these 'order online and try on for free' websites are all the rage but a) I don't know whether they're all that great; their RX'able sunglasses sections seem much smaller than the rest of their catalog and b) a lot of glasses shops offer discounts on frames if you purchase there after your examination.
Thanks for any info you can provide!
Organichu on
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1) I would say this is most likely true. For example, I can't imagine a pair of Aviators being good for prescription lenses.
I can't really speak for number 2.
3) I actually did just that. I bought a pair of Oakley Whiskers, took them to my glasses shop, and they put in the prescription lenses no problem, and I was even able to use my vision insurance on the lenses.
Yes, the curve of the lens matters. A slight curve is fine, it's just the wraparounds that are impossible to have a prescription on. HOWEVER, some people are more susceptible to feeling uncomfortable with slightly curved lenses more than others. For me, it has never bothered me. For a friend, he's had trouble adapting to the glasses and wasn't happy. If you buy from a reputable store, they'll generally give you a full refund if you're not happy with how the prescription turned out and it hurts your eyes. Stores are also good because the people working their know best what is possible and what isn't. Lenscrafters and Pearl Vision are ok... but really not that great fyi. They stock a lot of ugly shit.
Gradient lenses are exactly as they seem. Looking out the bottom half is brighter than the top half. If you're really sensitive to light, then I wouldn't get them.
1. only very low RX can be worked on to very curved lenses. your rx is made of very actratly worked curves. so working that onto a lens that needs to be curved just makes the lens thicker and have a smaller optiacal center and more prismatic destortion. think looking threw a normal window and then looking thew a gold fish bowl. some lens manifatures make specal lenses for curved frames. still dont have a massive amount of rx range. they use prism thinning and free form surficeing to make them opticaly batter. but they cost 3 to 4 times as much as a normal lens. so most of the time they are only worth it if you have a sport or hobby you need wrap around glasses for.
2. graduated lenses are 100% uv protection. uv blocker on lenses is actualy clear to the naked eye. so the tint on then lens actualy has no bareing on the uv protection. the tint should be chosen purely for usefulness and cosmetic reasons.
3 really depends on the frame. sunglesses are sometimes made to "opthamlmic" quality so they should be able to make lenses for them. some fasion and cheep brands are not, and will have no screws or be cheeply made, and not take the lenses or not take being taken apart. also bare in mind, that if you but a pair or ray bans aor somthing in vuew to put your rx lenses in them you are spending some times over half of the cost of the sunglasses on the lenses and all you will be doing is takeing those lenses out and throwing them away.
most good opticains will have a sunglass range that are rx-able and be on offer over the summer
hope this helps
I have a pair of Gunnar Optiks PPKs that have a lot of curve to them and the lenses were no more expensive than ordinary glasses (and I have 20/400+ vision in one of my eyes).
The main thing is finding a pair of frames that you like and are comfortable.
When you do get sunglasses or whatever, make sure you get them polarized.
I think that answers most of my questions, and now I need to pick out a pair. Blech.
It's pretty great being able to drive or be out in the sun while wearing glasses, though I can see well enough aside from driving without Rx.