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Contraction amplitudes of post-illumination pupil responses (= PIPR; %) for melanopsin-weighted bright blue-light stimuli (2.3 log cd/m2; binocularly presented; mean, SEM; n = 47). They are shown for both seasons (winter: left side; summer: right side) and both groups (cataracts vs. pseudophakic patients). *p < 0.05 between pseudophakes winter and summer.
