gms | German Medical Science

102. Jahrestagung der DOG

Deutsche Ophthalmologische Gesellschaft e. V.

23. bis 26.09.2004, Berlin

Static fundus perimetry in normals: MP1 versus SLO

Meeting Abstract

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  • corresponding author C. Springer - Department of Ophthalmology, University of Heidelberg, Heidelberg
  • H. E. Völcker - Department of Ophthalmology, University of Heidelberg, Heidelberg
  • K. Rohrschneider - Department of Ophthalmology, University of Heidelberg, Heidelberg

Evidenzbasierte Medizin - Anspruch und Wirklichkeit. 102. Jahrestagung der Deutschen Ophthalmologischen Gesellschaft. Berlin, 23.-26.09.2004. Düsseldorf, Köln: German Medical Science; 2004. Doc04dogDO.01.15

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Veröffentlicht: 22. September 2004

© 2004 Springer et al.
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The Micro Perimeter 1 (MP1) allows for fundus-controlled static perimetry of the central visual field. In order to evaluate the perimetric results the knowledge of reference values is essential and these do not exist for the MP1 up to now. Purpose of this study was to compare the MP1 fundus perimetry with the already established Scanning Laser Ophthalmoscope (SLO) fundus perimetry concerning the detected threshold values of the light increment sensitivity.


In 31 eyes of 31 healthy volunteers a fundus controlled static threshold perimetry was carried out each with the MP1 (Nidek, Inc., Italy) and the SLO (Rodenstock, Germany). In the central 12x21-degree visual field 40 corresponding stimulus locations in a 3-degree rectangular test grid were compared. Both examination methods used a 4-2-1-test strategy, Goldmann III stimuli and a red background illumination. Range of luminance (MP1: 0-20 dB, SLO: 0-21 dB) and stimulus duration were different. For 40 corresponding stimulus locations the threshold values of the light increment sensitivity were compared.


The average light increment sensitivity was 19,1±0,5 dB (17,7-19,9 dB) with the MP1 and 17,2±0,9 dB (15,1-18,6 dB) with the SLO. On average the threshold values of the 40 corresponding test locations were with the MP1 1,9±0,8 dB (0,52-3,4 dB) higher than with the SLO.


The MP1 as well as the SLO offers the possibility of a reproducible functional analysis of the central retina under simultaneous fundus control. For comparison of results of the MP1- and SLO-fundus perimetry a correction factor of 2 dB should be used. The mean light increment sensitivity with the MP1 was in this study close to the maximal possible light sensitivity (20 dB) and therefore the exact determination of threshold values is limited and could explain the lower width of fluctuation of the determined threshold values with the SLO.