123 295

Cited 0 times in

A comparison of the integrity of clear corneal incision wound and induced corneal astigmatism according to the material of keratome and the size of incision

Other Titles
 백내장 수술 시 투명각막절개창의 크기 및 각막 절개도의 재질에 따른 절개 단면 형상과 난시 변화의 비교 
Issue Date
Dept. of Medicine/석사
Purpose : To compare wound characteristics and morphologic and optical integrity of clear corneal incision formed with a 2.8-mm metal blade or 2.8-mm or 3.2-mm incisions formed by diamond blades.Design : Prospective, randomized clinical study.Methods : Patients who underwent phacoemulsification with intraocular lens implantation through temporal clear corneal incision (CCI) were randomized into 1 of 3 groups, i.e. a 2.8-mm metal blade (MB), and either 2.8-mm or 3.2-mm diamond blade (DB) group. The incisions were evaluated at 1 day, 1 week, and 1 month after surgery for coaptation of incision and wound architecture using RTVue Fourier-domain optical coherence tomography. Vision and autokeratometry were also measured to evaluate surgically induced astigmatism (SIA) at postoperative 1 month.Results : There was no difference in the incidence of epithelial gaping among groups, but the length of epithelial gaping was larger in 2.8mm MB group at postoperative 1 day. Gaping at the endothelial side of the wound was persistent more frequently until post operative 1 month in 2.8mm DB group than other groups. Endothelial bullae was observed more frequently at 1 week after surgery in 2.8mm DB group than other groups. In the aspect of quality of incision angle, there was no difference among groups in 1 month, but 3.2mm DB made significantly steeper angle than the other two types of 2.8mm blades at postoperative 1 week. There were no significant differences in corneal thickness at central part of CCI, but at nasal and temporal part of CCI site, CCI created by 2.8mm DB showed thicker corneal thickness than the other groups for a week. The mean SIA using vector analysis was larger in the 3.2mm diamond group than other groups. Conclusion : After phacoemulsification, CCI made by DB showed more corneal edema and reduced internal CCI structural integrity than CCI made by MB in 2.8mm incision size. 2.8 mm incision compared to 3.2 mm incision, result in less SIA regardless of the material of microkeratome.
Files in This Item:
T011672.pdf Download
Appears in Collections:
1. College of Medicine (의과대학) > Others (기타) > 2. Thesis
사서에게 알리기


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.