Stuart
----- Original Message ----- From: "Jason Armistead" <[EMAIL PROTECTED]>
To: "Discussion of issues relating to Soaring in Australia." <[EMAIL PROTECTED]>
Sent: Tuesday, September 28, 2004 1:23 PM
Subject: Re: [aus-soaring] Best sunglasses for gliding ?
Peter
Your talk of pterygium and blue eyed people got me worried because I've got
blue eyes (with no others for 2 generations up the family tree), and so have
my 2 kids (even though my wife has brown eyes which should be dominant, I
guess she carries a recessive blue eye gene).
For others wondering what the fuss is about, a quick search for pterygium in
Google revealed many sites, including
http://www.stlukeseye.com/Conditions/Pterygium.asp
and
http://www.revoptom.com/handbook/sect2i.htm
Thankfully I don't seem to have this, but I will certainly keep an eye out (no pun intended) in case it ever becomes a problem.
With regard to the polarised magnetic clip-ons, I should point out that my
frames were specifically designed to accomodate them - they are sold as a
matching set, and are not something you simply tack on to an existing pair of
glasses.
Cheers
Jason
On Tue, 28 Sep 2004 12:43:28 +1000, Peter Stephenson wroteI and many others use Mike Borgelt's yellow clip on wrap around shades. They look funny/unusual and are not easy to store but do the trick. They also need some adjusting to some spectacle frames with scissors.
You need the wrap around to stop sun-light from the side of the face being focussed on the *opposite* side of the cornea (clear part of the eye) and burning it, causing a pterygium ("wing" = pterygium) that is so common in this climate, especially blue eyed people.
Mike or his wife imports them the US and sells them snailmailorder.
PeterS
----- Original Message ----- From: "Pete Siddall" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Tuesday, September 28, 2004 12:31 PM
Subject: Re: [aus-soaring] Best sunglasses for gliding ?
> On Mon, 27 Sep 2004 22:51:21 +0930
> Mark Newton <[EMAIL PROTECTED]> wrote:
>
> > I've never really had any luck getting polarized prescription
> > sunglasses.
>
> Me neither. The optometrist suggested I try off-the-shelf polarised
> sunnies to see how I liked polarisation - fine. So he had some
> prescription polarised lenses made, and IMO they were unusable. They > put
> uneven stains and colours across my field of view. The opto compared > them
> to several other prescription polarised sunnies nearby, they all had > what
> looked like stress marks... purplish tinted areas that became very > obvious
> when crossed against another polarised lens.
>
> It seemed obvious to me that any glasses for flying should be optically
> uniform. The opto didn't agree and kept saying "you'll adjust to it". > Just
> what the old brain doesn't need, one more thing to do while looking > out! I
> didn't like the idea enough to fly with them... now I have the same > thing
> with tint but without polarisation - no problem.
>
> Jason's answer of adding polarised clip-ons to prescription glasses > sounds
> like a plan.
>
> -- > Pete Siddall
> various GC
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