Volume 35, Issue 3 , Pages 444-450, March 2009
In vivo architectural analysis of clear corneal incisions using anterior segment optical coherence tomography
Purpose
To use anterior segment optical coherence tomography (AS-OCT) to analyze the in vivo architecture of clear corneal incisions after phacoemulsification using different techniques.
Setting
Department of Ophthalmology, Quinze-Vingts National Ophthalmology Hospital, Paris, France.
Methods
This prospective observational study analyzed clear corneal incisions used in phacoemulsification. All wounds were evaluated 1 day and 8 days postoperatively by AS-OCT (Visante). Incision architecture and pachymetry at the wound level were analyzed.
Results
Thirty-five clear corneal incisions were analyzed. Six eyes had 2.75 mm coaxial phacoemulsification, 19 had 2.20 mm microincision coaxial phacoemulsification, and 10 had 1.30 mm bimanual microincision phacoemulsification. The 1.30 mm incision had a straight-line configuration. The 2.20 mm and 2.75 mm incisions had an arcuate configuration. The angles of incidence of 1.30 mm incisions were greater than those of 2.20 mm incisions (P<.001). All incisions had slight corneal edema limited to the incision area. The edema was slightly greater around 1.30 mm incisions (mean pachymetry 1143 μm ± 140 [SD]) than around 2.20 mm incisions (mean 1012 ± 101 μm) (P = .001). Bimanual procedures had satisfactory endothelial apposition in the enlarged areas, where stromal edema was less than that surrounding the unenlarged 1.30 mm incisions.
Conclusions
The 3 phacoemulsification techniques induced gaping of the endothelial edge, minor inadequate endothelial apposition, and mild stromal edema in the area of the clear corneal incisions. Bimanual microincision sleeveless phacoemulsification may alter the wound slightly more than coaxial 2.75 mm and microcoaxial 2.20 mm sleeved-tip phacoemulsification.
To access this article, please choose from the options below
No author has a financial or proprietary interest in any material or method mentioned.
Presented in part as a poster at the annual meeting of the Association for Research in Vision and Ophthalmology, Fort Lauderdale, Florida, USA, May 2008.
Supported by Quinze-Vingts National Ophthalmology Hospital, Paris, France.
PII: S0886-3350(08)01162-0
doi:10.1016/j.jcrs.2008.11.034
© 2009 ASCRS and ESCRS. Published by Elsevier Inc. All rights reserved.
Volume 35, Issue 3 , Pages 444-450, March 2009
