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hi Graeme,
your report,
The Rx needs a cylinder axis, and usually a spherical component, even if it's zero, something like: R plano -0.75 x 175°. This allows the lens to be oriented at the correct angle relative to the horizontal line through the centres of both pupils, in this case 175°. You don't have to worry about that, it's your optometrist's job to put it in the right place!,
my question is,
is it better for the optometrist to make the corrector lens, with all the 175° required & -0.75,
than purchase the Tele-Vue off the shelf corrector lens,
or is the Tele-Vue off the shelf corrector sufficient for general viewing,
regards,
Peter
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