Copenhagen 2016 Registration Programme Exhibitor Information Virtual Exhibition Satellite Meetings Glaucoma Day 2016 Hotel Star Alliance

10 - 14 Sept. 2016, Bella Center, Copenhagen, Denmark

This Meeting has been awarded 27 CME credits


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Repeatability of lower and higher order aberration measurements in pseudophakic patients using a Hartmann-Shack device

Poster Details

First Author: M. Ullrich AUSTRIA

Co Author(s):    C. Leisser   N. Hirnschall   O. Findl              

Abstract Details


The aim of this study was to assess the repeatability of lower and higher order aberration measurements using a standard Hartmann-Shack sensor device in pseudophakic patients.


Vienna Institute for Research in Ocular Surgery, A Karl-Landsteiner-Institute, Hanusch Hospital, Vienna, Austria.


Pseudophakic patients were recruited at a minimum of one month after their cataract surgery. All patients were pharmacologically dilated (tropicamide 0,5%, Agepha). Patients who failed to dilate sufficiently (i.e. pupil size < 2.5mm) were excluded. Three consecutive measurements were performed on the same day with a Hartmann-Shack aberrometry device (WASCA, Carl Zeiss Meditec AG, Germany).


In total, 200 eyes of 200 patients were included, 112 were right eyes, 88 left eyes. The average pupil size was 5.34 mm (SD 1.01 mm). The mean spherical equivalent was -0.77 D (SD 1.10 D), the mean cylinder -0.93 D (SD 0.63 D). The mean standard deviation between the three measurements was 0.13 D (SD 0.15D) and 0.09 D (SD 0.11D), respectively. Spherical aberration (Z(4,0)) was on average −0.28 μm (SD 0.37). The mean standard deviation of the spherical aberration between the three measurements was 0.06 μm (SD 0.05). Further results will be presented.


In all patients measurements up to the 4th order could be obtained with high feasibility. Wave-front aberrometry using the WASCA Hartmann-Shack device showed excellent repeatability for lower order aberrations and good repeatability for spherical aberration measured.

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