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Prescritpion cycling glasses
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thegibdog
the_village_idiot wrote:
i disagree m8, inserts are a much safer bet- some prexcriptions cant be placed into frames like those from optilabs

the_village_idiot wrote:
and im sure they wouldn't actually! Its noit as simple as "they can or cant do it"- for the most part its a case of "yeah we can do it- whether you will get on with them properly or not is a gamble...."

I see, your original point was around prescriptions that can't be placed in the frames which is different than not getting on with them.
the_village_idiot wrote:
your glasses are not at greater risk of scratches, just that its a bigger deal if it happens:

1) buy some addidas style glasses with inserts: lenses get scratched- no big deal, the frame is good, the inserts are good- buy some replacement lenses- cost- i dunno, maybe £30? you have an outer layer of plastic which is more expendable.

2) buy the ones you reccomend- if the lenses get scrached- they are precription- and as such MUCH more expensive!

But surely the inserts are prone to scratching too - if you scratch both of them you're looking at a similar bill?
the_village_idiot wrote:
explain what the comprimises of inserts are exactly??

Having twice as many lenses as the glasses are primarily degined to have - more surfaces to steam up / get dirty etc. In my opinion this is a bigger issue than scratching, but then I've never significantly scratched a pair of glasses in my life.

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BigSpecs
Hi Trev,

Have been trying to ignore this post but have cracked....I am an Optometrist with more than a passing interest in Sports Vision.

Prescription glasses are definitely an attractive option, as are contact lenses. You make your own choice depending on what suits you. A lot of Opticians offer a free lens trial, if that option appeals to you.

With regard to the glasses, there is a multitude of options, including those with adapter and those without. The main advantage of an adapter to a cyclist is that you can change the colour of the outer lens depending on the conditions. Eg clear for night, dark for sun. They are a little heavier though and sometimes can brush the lashes as they sit close to the face.

The difficulty with all sports glasses is that glazing a prescription lens into a curved frame (or a curved insert for that matter) needs a bit of knowledge and a bit of skill. To cut a long story short, the prescription needs to be altered due to the curve (or the vision is fuzzy) and the lens needs to be made to fit the frame (otherwise it keeps falling out). These are the main reasons for people being unhappy with prescription sports glasses.

Have a look here and it will help explain (hopefully).
http://www.sports-lenses.co.uk/sports_anpassung+M52087573ab0.html

FWIW I like the Adidas and the Rudy frames with inserts. I have a T-Sight for cycling, with an insert from R&H.

Cheers,
Col.

2009 Etape Caledonia for The Geoff Thomas Foundation
blog - http://gtwinner.blogspot.com/
donate - http://www.justgiving.com/colinmoulson
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trevtherev
thanks all for the great advice give me a lot to think about..... i am going to try the contact route and see how i get along

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the_village_idiot
thegibdog wrote:


I see, your original point was around prescriptions that can't be placed in the frames which is different than not getting on with them.



yes, both factors really!

thegibdog wrote:


But surely the inserts are prone to scratching too - if you scratch both of them you're looking at a similar bill?

given that the inserts have another layer of lens 1cm in front- that should protect them nicely- im thinking branches, dropping them, stones kick up etc



thegibdog wrote:


Having twice as many lenses as the glasses are primarily degined to have - more surfaces to steam up / get dirty etc. In my opinion this is a bigger issue than scratching, but then I've never significantly scratched a pair of glasses in my life.


[/quote]

well in fairness the glasses with inserts are designed to have two pairs of lenses....but i guess it depends on the purpose- for gentle commuting during the day- a pair as you suggest are gonna be a fair bit- but for more rough/off road situations of varying light levels and conditions- your more likely to be able to get on with inserts- and i would NEVER risk buying that kind of thing on the net

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