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Changes in Anterior, Posterior, and Total Corneal Astigmatism after Descemet Membrane Endothelial Keratoplasty
Joint Authors
Alnawaiseh, M.
Rosentreter, A.
Eter, N.
Zumhagen, Lars
Source
Issue
Vol. 2017, Issue 2017 (31 Dec. 2017), pp.1-7, 7 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2017-05-02
Country of Publication
Egypt
No. of Pages
7
Main Subjects
Abstract EN
Purpose.
To evaluate changes in anterior, posterior, and total corneal astigmatism in patients after Descemet membrane endothelial keratoplasty (DMEK).
Methods.
We retrospectively included 29 eyes of 23 patients (age 67.6 ± 9.8 years, 13 female, 10 male) after DMEK surgery.
The magnitude and axis orientation of anterior, posterior, and total corneal astigmatism before and after DMEK were determined using a rotating Scheimpflug system (Pentacam HR, Oculus).
Results.
The magnitude of anterior, posterior, and total corneal astigmatism in the central cornea did not change significantly after surgery.
Before surgery, we found a significant correlation between the magnitudes of anterior and posterior corneal astigmatism (Spearman’s correlation coefficient rS=0.526, P=0.003), while after surgery this correlation was no longer significant (rS=0.038, P=0.843).
There was a significant correlation between the vector difference between preoperative and postoperative posterior astigmatism and the change in corneal pachymetry (rP=0.47, P=0.010).
Conclusions.
Posterior corneal astigmatism (especially the orientation) and therefore the relationship between anterior and total corneal astigmatism may change after DMEK.
This should be considered to improve the accuracy of toric IOL power calculations following phakic DMEK or in combined procedures.
American Psychological Association (APA)
Alnawaiseh, M.& Zumhagen, Lars& Rosentreter, A.& Eter, N.. 2017. Changes in Anterior, Posterior, and Total Corneal Astigmatism after Descemet Membrane Endothelial Keratoplasty. Journal of Ophthalmology،Vol. 2017, no. 2017, pp.1-7.
https://search.emarefa.net/detail/BIM-1184885
Modern Language Association (MLA)
Alnawaiseh, M.…[et al.]. Changes in Anterior, Posterior, and Total Corneal Astigmatism after Descemet Membrane Endothelial Keratoplasty. Journal of Ophthalmology No. 2017 (2017), pp.1-7.
https://search.emarefa.net/detail/BIM-1184885
American Medical Association (AMA)
Alnawaiseh, M.& Zumhagen, Lars& Rosentreter, A.& Eter, N.. Changes in Anterior, Posterior, and Total Corneal Astigmatism after Descemet Membrane Endothelial Keratoplasty. Journal of Ophthalmology. 2017. Vol. 2017, no. 2017, pp.1-7.
https://search.emarefa.net/detail/BIM-1184885
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1184885