Text 598, 56 rader
Skriven 2005-09-15 21:53:34 av DAVID WILLIAMS (1:250/514)
     Kommentar till en text av Herman Trivilino
Ärende: photochromic glasses
============================
-> It sounds like you have progressive lenses, and for the first time!  A word 

-> caution, the vertical position of the lens is critical.  Too high and you ar

-> always looking through the reading portion of the lens (this gives me a 
-> headache).  The only way I can tell for sure that it's happening is to drive

-> night on a straight and level stretch of road, with another car far ahead of

-> me.  I look at its tail lights.  If I have to lower my chin to see them 
-> clearly, I know my lenses are too high.  Looking straight ahead, those tails

-> lights should be in focus.  If I have to lift my chin very far to bring them

-> out of focus, the lenses are too low. 
 
-> The lenses can be raised (or lowered) a millimeter or two by moving the nose

-> pads closer together (or further apart.  If more adjustment than this is 
-> required, bring the glasses back to the place you bought them.  They will ne

-> to order new lenses and cut them again, at their expense. 
 
-> I would say I've purchased about eight pair in the last 10 years, and all bu

-> one time the lenses had to be re-cut.  I'm convinced that many of the people

-> who've tried progressive bifocals and claim they can't wear them are just 
-> victims of poorly fit and poorly adjusted lenses. 
  
Adjusting the nose-rests is certainly one way of customizing a pair of 
glasses to fit your particular face, but it is by no means the only 
one. Everyone's face is asymmetrical to some degree. My nose is 
slightly crooked, as a result of a childhood accident, and my left ear 
is a few millimetres higher than the right. To make a pair of glasses 
fit me perfectly, I have not only to adjust the nose-rests, but also to 
bend one arm of the glasses slightly upward and the other slightly 
down. Usually, I also have to bend the ends of the arms down at a 
sharper angle than the original one, so as to make them fit more snugly 
around my ears. I like them that way, so the glasses do not slip down 
my nose no matter how much I shake my head. Also, doing this pulls the 
nose-rests up to the top of my nose. 
  
I got a new pair of glasses yesterday, and am still adjusting them by 
trial and error. I've got them *nearly* right, now. 
  
One thing I have *never* had to do is get the lenses re-cut. I must 
have had about a dozen pairs of glasses in my life, including three 
pairs of progressive multifocals. Very often, when they've been 
brand-new, I have found that glasses don't work very well, but I have 
always been able to adjust the frame so as to make them work as they 
should. 
  
                          dow 
--- Platinum Xpress/Win/WINServer v3.0pr5
 * Origin: The Bayman BBS,Toronto, (416)698-6573 - 1:250/514 (1:250/514)