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Impact of a precut on clear cornea incision architecture in cataract surgery

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Session Details

Session Title: Cornea: Surgical II

Session Date/Time: Tuesday 08/09/2015 | 14:00-16:00

Paper Time: 14:52

Venue: Room 11

First Author: : B.Doeller AUSTRIA

Co Author(s): :    N. Hirnschall   M. Weber   P. Nguyen   O. Findl           

Abstract Details

Purpose:

To assess the influence of a 600 µm corneal pre-cut on incision architecture compared to a stab-incision in cataract surgery.

Setting:

Vienna Institute for Research in Ocular Surgery, Department of Ophthalmology, Hanusch Hospital, Vienna

Methods:

This randomized bilateral study included patients scheduled for cataract surgery in both eyes. Preoperatively, optical biometry and topography were performed. The first eye to be operated randomly received a corneal pre-cut, or a single-plane stab incision and the second eye received the other incision technique. In the pre-cut group, a vertical cut was performed using a 600 µm guided blade. Incision size was 2.4 mm in both groups. Incision architecture was assessed intraoperatively using a continuous intraoperative-OCT device after the incision, after I/A and after IOL implantation. Additionally, OCT measurements were assessed one hour, one week and one month postoperatively.

Results:

In total, 40 eyes of 20 patients were included. The intraoperative measurements were possible in all cases and details of the morphology of the incision was visible in nearly all cases. Intraoperative findings of endothelial and epithelial gaping, as well as descemet detachment correlated well with post-operative findings at the 1 hour follow-up. Correlations between wound architecture and residual astigmatism were found to be weak.

Conclusions:

Intraoperative OCT measurements using spectral domain technology were found to be useful to observe and document the incision architecture during cataract surgery.

Financial Interest:

NONE

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