The effect of different suturing techniques on astigmatism after penetrating keratoplasty.
The purpose of this study was to compare the effects on astigmatism after penetrating keratoplasty with three different suture techniques. In this prospective study, 38 eyes of 38 patients underwent penetrating keratoplasty with three suturing techniques: interrupted, single running, and double running. Topographic astigmatism was measured at 2, 6, 12, and 18 months after keratoplasty. During 18 months after surgery, the interrupted suture group had higher astigmatism than the double running suture group. There was no significant difference in the amounts of astigmatism during the first year after keratoplasty between the single running and the double running suture group. However, at 18 months after surgery, when all sutures were out, the double running suture group (3.60+/-1.58 diopters) showed significantly less astigmatism than the single running group (5.65+/-1.61 diopters). In conclusion, post-keratoplasty astigmatism was the least in the double running suture group of the three suturing techniques at 18 months after penetrating keratoplasty.
Kim
Sang Jin
SJ
Department of Ophthalmology , Seoul National University Hospital, Seoul, Korea.
Wee
Won Ryang
WR
Lee
Jin Hak
JH
Kim
Mee Kum
MK
D000328:Adult; D001251:Astigmatism / Q000209:etiology / Q000517:prevention & control*; D003316:Corneal Diseases / Q000601:surgery; D019781:Corneal Topography; D005260:Female; D006801:Humans; D015948:Keratoplasty, Penetrating; D008297:Male; D008875:Middle Aged; D011183:Postoperative Complications; D011446:Prospective Studies; D013536:Suture Techniques; D013997:Time Factors; D014792:Visual Acuity