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Cystoid macular oedema after uncomplicated cataract surgery: the potential role of phacoemulsification energy and vitreoretinal interface status

Session Details

Session Title: Vascular Diseases III

Session Date/Time: Sunday 29/09/2013 | 08:00-10:00

Paper Time: 09:28

Venue: Hall 3 (Level 0)

First Author: K.Anastasilakis GREECE

Co Author(s):    A. Mourgela   C. Symeonidis   S. Dimitrakos   P. Oikonomidis     

Abstract Details

Purpose:

To study the postoperative macular thickness fluctuations measured by means of SD-OCT and to correlate the incidence of cystoid macular edema (CME) with the cumulative dissipated energy (CDE) released during phacoemulsification and vitreoretinal interface status.

Setting:

Ophthalmology Departments of “Papageorgiou” University Hospital and “424” Military Hospital of Thessaloniki

Methods:

This is a prospective cross-sectional study.105 cataract patients with no macular disorder underwent phacoemulsification. BCVA measurement, slit lamp examination and OCT scans were performed preoperatively and postoperatively at day 30 and 90. The intraoperative parameters measured were the CDE and total phacoemulsification time. SD-OCT parameters assessed were central subfield thickness (CST), cube average thickness (CAT), cube macular volume (CMV), vitreoretinal interface status and presence of cystoid or diffuse macular edema

Results:

4 patients (4.6%) developed subclinical cystoid macular edema. OCT macular thickness parameters were significantly increased postoperatively compared to preoperative measurements, both at 1st and 3rd month postoperative visits while CMV and CAT showed a significant decrease between postoperative visits (related samples Wilcoxon signed rank test). Cystoid macular edema showed no significant difference between patients with presence or absence of posterior vitreous detachment (chi-square test, p=0.56), though 75% of CMEs were detected in the group of patients with attached posterior vitreous. CME was significantly more frequent in patients with increased CDE during phacoemulsification (chi-square test, p=0.023).

Conclusions:

This study provides evidence that OCT macular thickness parameters increase significantly at 1st and 3rd month postoperatively and that the incidence of pseudophakic CMO is significantly affected by the CDE

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