Quick question: for those who wear or design wavefront‑guided Rxs outside the clinic, how noticeable is lateral color reduction in day‑to‑day tasks like spreadsheet work and night driving? Last week I benched a freeform prototype that nudges longitudinal CA using an Abbe 56 polymer and a 3.5 mm target pupil; Shack‑Hartmann showed about an 18% off‑axis MTF bump at 15 cpd, and I’m trying to gauge whether that reads as better contrast and less fatigue over a full workday…
At 3.5 mm, that “18% off‑axis MTF bump at 15 cpd” matches what I notice on spreadsheets — crisper gridlines during saccades — but it drops off for me at night when pupils hit about 5–6 mm and headlight spectra swamp the gains. Quick check: A/B your proto vs a same‑material control at dusk reading license plates 10–15° off‑axis, then repeat under warmer (3000K) light to stress LCA. What eccentricity and gaze condition did you optimize for?
I get better day-to-night balance by weighting the optimization around a mesopic pupil instead of the “3.5 mm target pupil” — a 3.8–4.2 mm band in the merit function cut color halos for me with only a tiny drop in that 15 cpd gain. Did your Shack‑Hartmann run feed polychromatic data, or was it a 550 nm solve?