Official ESCRS | European Society of Cataract & Refractive Surgeons
Vienna 2018 Delegate Registration Programme Exhibition Virtual Exhibition Satellites 2018 Survey


escrs app advert

Characteristics of preoperative and postoperative astigmatism in patients undergoing Descemet's membrane endothelial keratoplasty

Search Title by author or title

Session Details

Session Title: Presented Poster Session: Equipment, Instrumentation & Surgical Devices

Venue: Poster Village: Pod 1

First Author: : M.Shajari GERMANY

Co Author(s): :    C. Kolb   I. Schmack   W. Mayer   G. Steinwender   S. Priglinger   T. Kohnen        

Abstract Details


To evaluate the characteristics of preoperative and postoperative astigmatism in patients undergoing Descemet membrane endothelial keratoplasty (DMEK).


Department of Ophthalmology, Goethe University, Frankfurt, Germany.


53 eyes of 45 patients with Fuchs’ endothelial dystrophy (FED) were included. Measurements were obtained using a Scheimpflug camera (Pentacam AXL, Oculus) preoperatievly, at 3 and 12 months postoperatively. Values of front and back astigmatism and total astigmatism of the central 4 mm diameter zone (TCA4) were analyzed.


In patients with FED, the prevalence of astigmatism above 1 diopter is considerably higher(79%) and astigmatism WTR is less frequent than in the healthy population. TCA4 correlated with anterior astigmatism preoperatively and postoperatively(P<0.001), as well as with posterior astigmatism at the 1-year follow-up(P<0.01). Although, no correlation was found between preoperative and 1-year results for anterior(P=0.12), posterior(P=0.35), and total corneal astigmatism(P=0.47), difference in vector analysis between both measurements was only 0.01 at 109° for anterior, 0.03 at98° for posterior, and 0.02 at157° for total corneal astigmatism. However, the higher the preoperative TCA3-TCA5- discrepancy, the more the corneal astigmatism decreased.


The percentage of eyes with corneal astigmatism above 1 D is higher pre- and postoperatively in patients with FED compared to a healthy population. Prediction of postoperative astigmatism based on preoperative results is not possible but in eyes with a high discrepancy between TCA3-TCA5 a reduction in corneal astigmatism after DMEK is likely.

Financial Disclosure:


Back to previous