Soldering eyeglass Frames
"Richard J Kinch" wrote in message
. ..
William Sommerwerck writes:
Note that the angles are in one-degree increments. Is the store
supposed to stock 180 different versions of a lens with -2.5 diopters
refraction and -.5 diopters cylindrical?
Read my earlier reply. One lens blank covers all cylinder angles for a
given spherical power and cylinder power. The angle is determined by the
trimming of the blank.
Duh. Duh, duh, duh. Of course.
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