Programm                 "Degeneration und Regeneration– Grundlagen, Diagnostik und Therapie"


Hotelbuchung
   Hotel Registration
Grußwort
   Welcome address
Beteiligte Gesellschaften
   Societies involved
DOG Information
   DOG Information
Eröffnung des Kongresses
   Opening Ceremony
Preise
   Awards
Ablauf der Tagung 2003
   General overview of congress
Lageplan der Räumlichkeiten
   Map of Congress Center
Wissenschaftliche Themen
   Scientific topics
Symposien
   Symposia
Wissenschaftliches Programm
   Scientific program
Posterpräsentationen
   Poster Presentation
Kurse
   Courses
Begleitende Veranstaltungen
   Accompanying program
Arbeitssitzungen
   Working sessions
Rahmenprogramm
   Social program
Allgemeine Informationen
   General Information
Autorenindex
   Index of Authors
Industrieaussteller
   Commercial exhibitors
Sponsoren
   Sponsors
Impressum



DOG Homepage


Abstract
Abstract

Corneal Functional Optical Zone after LASIK for Myopia and Myopic Astigmatism

Kramann, C.1, Krummenauer, F.2, Dick, H. B.1
1University Eye Hospital, Johannes Gutenberg University of Mainz; 2Department of Medical Biometry, Epidemiology and Informatics, Johannes Gutenberg University of Mainz

Purpose: To evaluate the corneal functional optical zone (FOZ) after LASIK for myopia and myopic astigmatism using a flying spot excimer laser (ESIRIS, Schwind eye-tech-solutions, Germany) and to identify determinants of changes in the FOZ .
Method: This cohort study comprised 76 eyes with myopia and/or myopic astigmatism. Preoperative refraction, attempted correction and achieved correction, ablation zone diameter, preoperative pupil size, corneal pachymetry, intraocular pressure and corneal keratometry were correlated with the intraindividual FOZ reduction via Spearman correlation coefficients. Intraindividual FOZ changes were analysed using the sign tests to assess statistical significance, data description was based on medians and quartiles. Risk factors of clinically relevant FOZ reductions were identified using a multiple logistic regression model (Wald test). p values < 0.05 indicate local statistical significance.
Results: After LASIK, a median FOZ decrease to 87% (interquartile range 77% - 101%) was observed (sign test p<0.001), corresponding to an absolute reduction of -0.8 mm (-1.4 mm - +0.08 mm). None of the clinical parameters showed an absolute correlation larger than 30% (attempted correction 25%, ablat


Zurück | Back