are both eyes the same Ian ?
if so you might get away with a visit to the $2 shop (well you will probably pay about $5 a pair - in a case if your lucky)
try several different strengths to see what is best for you
think they start at about 1.5 then go up in .5 increments
ie: 1.5, 2.0, 2.5, 3.0,3.5 etc
i,m on about a 3 now
that $100 your paying out is for the frames
geoff
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