Effect of Pupil Size on Optical Quality Parameters in Astigmatic Eyes Using a Double-Pass Instrument

Figure 1

Point spread function (PSF) (left) and modulation transfer function (MTF) (right) images of 3 diopters of astigmatism obtained by the Optical Quality Analysis System: (a) 2-mm pupil, (b) 4-mm pupil, and (c) 6-mm pupil.

(a)

(b)

(c)