gms | German Medical Science

102. Jahrestagung der DOG

Deutsche Ophthalmologische Gesellschaft e. V.

23. bis 26.09.2004, Berlin

The clinical evaluation of the IOL Master Focus in comparison to the slit-lamp pachymetry

Meeting Abstract

  • corresponding author R. Beck - Universitäts-Augenklinik Rostock
  • O. Stachs - Universitäts-Augenklinik Rostock
  • H. Schneider - Universitäts-Augenklinik Rostock
  • K. Franke - Universitäts-Augenklinik Rostock
  • R. F. Guthoff - Universitäts-Augenklinik Rostock

Evidenzbasierte Medizin - Anspruch und Wirklichkeit. 102. Jahrestagung der Deutschen Ophthalmologischen Gesellschaft. Berlin, 23.-26.09.2004. Düsseldorf, Köln: German Medical Science; 2004. Doc04dogDO.04.08

The electronic version of this article is the complete one and can be found online at:

Published: September 22, 2004

© 2004 Beck et al.
This is an Open Access article distributed under the terms of the Creative Commons Attribution License ( You are free: to Share – to copy, distribute and transmit the work, provided the original author and source are credited.




High resolution biometry of the anterior segment is necessary for the evaluation of new lens generations based on the optical shift principle. The clinical device IOL master focus provide a non-contact biometry of the anterior segment using partial coherence interferometry. The aim of this study was to investigate the axial shift of the different IOL designs during an accommodative stimulus. These results were compared with anterior segment measurements using slit-lamp pachymetry (Jäger).


In 45 human volunteers with different IOL implants ( 1 CU, AT 45, Acri.lens 82C) anterior chamber depth measurements was performed in cycloplegia (cyclopentolate 1%) and under pharmacologically induced ciliary muscle contraction (pilocarpine 2%).


Under pharmacological induced accommodation and using IOL Master Focus the mean changes in anterior chamber depth was 1 CU 0,15 mm, AT 45 0,06 mm Acri.lens 0,08 mm. Using Jaeger the changes in anterior chamber depth was 1 CU Ø 0,32 mm, AT 45 Ø 0,14 mm, Acri.lens Ø 0,19 mm.


Using IOL master focus and pharmacological induced accommodation the changes in anterior chamber depth are smaller than the determined values with slit-lamp pachymetry (Jaeger). The Jaeger values are in correlation with the determined accommodation amplitudes.