Self-perceived uncorrected vision after LASIK surgery for the correction of myopia and myopic astigmatism appears to be very good and is related to the postoperative residual error. Although the majority of patients postoperatively experienced glare, particularly with driving at night, this was not related to the pupil-optical zone disparity or degree of correction.

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. Purpose:  To compare a handheld and a digital pupillometer in determining pupil size in a population of refractive surgery candidates (group 1) and after implantation of an Artisan phakic intraocular lens (PIOL) for correction of myopia (group 2). Methods:  Pupil size was measured with the Colvard and Procyon pupillometers in 121 eyes in group 1 and 83 eyes in group 2. Pupil sizes measured with the Colvard device were compared with the scotopic, mesopic‐low and mesopic‐high measurements taken with the Procyon pupillometer in both groups. Analysis of comparison between pupil measurements was performed according to methods described by Bland and Altman. Results:  The mean Colvard scotopic pupil diameter, scotopic, mesopic‐low and mesopic‐high Procyon pupil diameters were 5.86 ± 0.81 mm, 6.42 ± 0.88 mm, 5.55 ± 0.95 mm and 4.21 ± 0.73 mm in group 1 and 5.32 ± 0.67 mm, 6.14 ± 0.81 mm, 5.33 ± 0.78 mm and 4.02 ± 0.55 mm in group 2, respectively. The Colvard diameter compared most favourably with the Procyon mesopic‐low diameter (group 2; p = 0.78). Conclusions:  Measurements of pupil diameter with the Colvard pupillometer correlated best with measurements taken by the Procyon pupillometer under standardized mesopic‐low light conditions. We believe that digital binocular infrared pupillometry is advantageous for obtaining standardized measurements of pupil size.

PURPOSE:To compare pre-and postoperative horizontal and vertical pupil diameters after horizontal Artisan phakic intraocular lens (PIOL) (Ophtec BV, Groningen, The Netherlands) implantation for correction of myopia.