gms | German Medical Science

102. Jahrestagung der DOG

Deutsche Ophthalmologische Gesellschaft e. V.

23. bis 26.09.2004, Berlin

Tear-film function and corneal sensitivity after LASEK for the correction of myopia

Meeting Abstract

  • corresponding author W.A. Herrmann - Augenklinik der Universität Regensburg, Regensburg
  • C. Winkler von Mohrenfels - Augenklinik der Universität Regensburg, Regensburg
  • B. Gabler - Augenklinik der Universität Regensburg, Regensburg
  • A. Huber - Augenklinik der Universität Regensburg, Regensburg
  • K. Hufendiek - Augenklinik der Universität Regensburg, Regensburg
  • C.P. Lohmann - Augenklinik der Universität Regensburg, Regensburg

Evidenzbasierte Medizin - Anspruch und Wirklichkeit. 102. Jahrestagung der Deutschen Ophthalmologischen Gesellschaft. Berlin, 23.-26.09.2004. Düsseldorf, Köln: German Medical Science; 2004. Doc04dogFR.08.10

Die elektronische Version dieses Artikels ist vollständig und ist verfügbar unter: http://www.egms.de/de/meetings/dog2004/04dog231.shtml

Veröffentlicht: 22. September 2004

© 2004 Herrmann 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

Subepithelial nerves and stromal nerves in the cornea are damaged during LASEK surgery for the correction of myopia. This leads to a reduction of corneal sensation and to alterations of the tear film function in the postoperative period. The aim of this study was to evaluate tear film function, corneal sensation and subjective symptoms of a dry eye in the early postoperative period after LASEK for the correction of myopia.

Methods

LASEK surgery was performed in 20 eyes of 10 consecutive patients for the correction of myopia (-1.0 D to -8.0 D, mean -4.86 D). Subjective symptoms of a dry eye were evaluated with a standardized questionnaire. Schirmer Test with and without local anaesthesia, tear film breakup time, fluorescein staining of the cornea (Oxford scheme) and corneal esthesiometry (Cochet Bonnet) were performed before surgery and 3 days, 1 week, 1 month, 2 months and 3 months after LASEK.

Results

Corneal sensation is reduced 3 days and 1 week after LASEK and recovers during the 1 month after LASEK. The tear film breakup time is reduced 3 days, 1 week and 1 month after LASEK and reaches preoperative values 2 months after surgery. Fluorescein staining was increased 3 days and 1 week after LASEK. Subjective complaints of a dry eye were increased 3 days, 1 week, 1 month and 2 months after LASEK. Concerning the Schirmer Test with and without anaesthesia no significant changes were assessed after surgery as compared to preoperative values.

Conclusions

LASEK alters ocular surface hemostasis and reduces corneal sensation in the early postoperative period. Subjective symptoms of a dry eye were discribed during the first 2 months after surgery. 3 months after LASEK no statistically significant changes were observed concerning the assessed parameters as compared to preoperative values.