Original scientific paper
Comparison of Preoperative and Postoperative Astigmatism after Superotemporal or Superonasal Clear Corneal Incision in Phacoemulsification
Sanja Masnec-Paškvalin
Ivan Čima
Renata Iveković
Aljoša Matejčić
Katia Novak-Lauš
Zdravko Mandić
Abstract
The aim of this work was comparison of preoperative and postoperative astigmatism after superotemporal or superonasal
clear corneal incision. Twenty eight eyes of 28 patients treated with phacoemulsification through superotemporal
or superonasal 3 mm clear corneal incision were examined by kerato-refractometer preoperatively and six months postoperatively.
Adequate score was assigned to each preoperative and postoperative K-value with associated axis of astigmatism
to enable comparison. Wilcoxon paired samples test was used for statistical analysis. Postoperative uncorrected
Snellen visual acuity was 0.5 or better in 26 patients. In one patient visual acuity was 0.3 because of diabetic maculopathy.
Postoperative astigmatism was less or equal than preoperative in 18 and greater in 10 patients. There was no statistical
difference between the preoperative and postoperative astigmatism (Wilcoxon paired samples test, p=0.966) and
therefore the conclusion can be made that the superotemporal or superonasal clear corneal incision has minimal effect on
corneal astigmatism.
Keywords
astigmatism; phacoemulsification; clear corneal incision
Hrčak ID:
27315
URI
Publication date:
4.1.2007.
Visits: 1.749 *