gms | German Medical Science

102. Jahrestagung der DOG

Deutsche Ophthalmologische Gesellschaft e. V.

23. bis 26.09.2004, Berlin

How accurate does the autorefractor Shure Sight work?

Meeting Abstract

  • corresponding author M. Schittkowski - Rostock University, Department of Ophthalmology, Rostock
  • S. Hucks-Sievers - Rostock University, Department of Ophthalmology, Rostock
  • E. Zachäus - Rostock University, Department of Ophthalmology, Rostock
  • R.F. Guthoff - Rostock University, Department of Ophthalmology, Rostock

Evidenzbasierte Medizin - Anspruch und Wirklichkeit. 102. Jahrestagung der Deutschen Ophthalmologischen Gesellschaft. Berlin, 23.-26.09.2004. Düsseldorf, Köln: German Medical Science; 2004. Doc04dogFR.10.01

Die elektronische Version dieses Artikels ist vollständig und ist verfügbar unter: http://www.egms.de/de/meetings/dog2004/04dog247.shtml

Veröffentlicht: 22. September 2004

© 2004 Schittkowski et al.
Dieser Artikel ist ein Open Access-Artikel und steht unter den Creative Commons Lizenzbedingungen (http://creativecommons.org/licenses/by-nc-nd/3.0/deed.de). Er darf vervielf&aauml;ltigt, verbreitet und &oauml;ffentlich zug&aauml;nglich gemacht werden, vorausgesetzt dass Autor und Quelle genannt werden.


Gliederung

Text

Objective

The aim of this prospective study is to investigate how accurate works the autorefractometer Shure Sight (Welch Allyn) compared with Retinomax K-plus (Nikon) and standard retinoscopy.

Methods

100 eyes were examined. Patients were initially (pupil not pharmacologically influenced) analyzed with ShureSight (Shneutral) and Retinomax (Retneutral). After standardized Cyclopentolat cycloplegia an examination followed again with both devices (Shcyclo; Retcyclo) and a retinoscopy was done (one observer).

Results

Difference from retinoscopy in spherical values: Shneutral: mean 1±0,8dpt, max. 3dpt; Retneutral: mean 0,54±0,49dpt, max. 2,75dpt; Shcyclo: mean 0,7±0,7dpt, max. 3,5dpt; Retcyclo: mean 0,31±0,31dpt, max. 1,25dpt. Difference in cylindric values: Shneutral: mean 0,33±0,24dpt, max. 1dpt; Retneutral: mean 0,23±0,21dpt, max. 0,75dpt; Shcyclo: mean 0,38 ±0,32 dpt, max. 1,5 dpt; Retcyclo: mean 0,25±0,22dpt, max. 1dpt. Difference in spheric equivalent: Shneutral: mean 1,01±0,82dpt, max. 3,12dpt; Retneutral: mean 0,54±0,47dpt, max. 2,38dpt; Shcyclo: mean 0,71±0,75dpt, max. 3,63dpt; Retcyclo: mean 0,4±0,31dpt, max. 1,38dpt.

Conclusions

Retinomax accuracy is as good as good as shown in former studies, in our experience higher in cycloplegia than with neutral pupil. Shure Sight had some deficits in detecting the right spherical values. It might be usefull for screening small children because of the 35cm observing distance. For a precise refraction a retinoscopy under cycloplegic conditions is still necessary.