I have a patient who recently received a poly spherical 6 base lens from a competitor.
He came and ordered a backup pair from us (same Rx). Our poly is aspheric, and the base curve is a 3.
He's having issues seeing swim and distortion in the periphery through our lens. It's a SV. I've checked everything I could think of (power in the new set and the old, PDs and OCs in both sets) to look for anomalies, but the only thing I can find that's different is the base. If I recall correctly, when using an aspheric lens, the curve is 3 less than the spherical curve.
The patient is wearing them for a few days while I'm out of the office, and I want to followup with him when I return. If these don't work, our only option is a CR-39 (which is spherical and available on a 6 base), or a refund.
According to the textbooks, I don't think he should be having this problem - should he?
Thanks,
William
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