I guess by accuracy you mean the wearer's comfort and the visual experience of having the best possible optics in their direction of gaze (primary position for far and whatever the reading distance is) - centering the optics with their main visual axis -
I was wondering if you had a trial frame with 2 single pinhole lenses which allowed for monocular adjustment of pd - if you had a well designed target at 20 ft straight ahead of the patient - and you ask them to subjectively center the pinhole in each eye to put the target in the middle (best position) - would this be optimal.
Thoughts?
A ruler has worked for centuries, PD gauge (corneal reflection) for decades. Now they're inaccurate? No sale here.
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