Open AccessCan opposite clear corneal incisions have a role with post-laser in situ keratomileusis astigmatism?
Author(s) -
Hatem El-Awady,
Asaad A. Ghanem
Publication year - 2012
Publication title -
middle east african journal of ophthalmology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.357
H-Index - 25
eISSN - 0975-1599
pISSN - 0974-9233
DOI - 10.4103/0974-9233.95256
Subject(s) - medicine , keratometer , keratomileusis , dioptre , lasik , astigmatism , corneal topography , ophthalmology , visual acuity , cornea , surgery , optics , physics
To evaluate the astigmatic correcting effect of paired opposite clear corneal incisions (OCCIs) on the steep axis in patients with residual astigmatism after laser in situ keratomileusis (LASIK) MATERIALS AND METHODS: Thirty-one eyes of 24 patients with a mean age of 28.4 years ±2.46 (range, 19-36 years) were recruited for the study. Inclusion criteria included residual astigmatism of ≥1.5 diopter (D) after LASIK with inadequate residual stromal bed thickness that precluded ablation. The cohort was divided into two groups; group I (with astigmatism ranging from -1.5 D to -2.5 D) and group II (with astigmatism > -2.5 D). The steep axis was marked prior to surgery. Paired three-step self-sealing opposite clear corneal incisions were performed 1-mm anterior to the limbus on the steep axis with 3.2-mm keratome for group I and 4.1 mm for group II. Patients were examined 1 day, 1 week, 1 month, 3 months and 6 months, postoperatively. Visual acuity, refraction, keratometry, and corneal topography were evaluated preoperatively and postoperatively. Analysis of the difference between groups was performed with the Student t-test. P<0.05 was considered statistically significant.