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			Last time it happened to me, Stoatie, they wouldn't replace the lens because the presrciption was two years old and I had to have a new eye test, hence new prescription, hence new glasses.  Apparently it's the law.   The Specs Must Work Act 2005 or similar.   Less than a year and they'll whip a new one in for you, no bother. 
 
Of course, a back street optician would probably offer a new lens, that's near enough the right strength, for the cost of a blow job.   And looks or sex appeal wouldn't really be an issue until one could see properly again, so sounds like a plan to me.			 |   
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