Posters

Choroidal and vascularity flow density changes using swept-source OCT angiography in patients prior to and after uncomplicated phacoemulsification and intraocular lens placement

Poster Details

First Author: E.Papakonstantinou GREECE

Co Author(s):    S. Kandarakis   K. Andreanos   A. Diagourtas   I. Georgalas   D. Papaconstantinou        

Abstract Details

Purpose:

To examine the changes that take place in the choroidal layer as well as the changes in the vascular flow density using OCT- Angiography in patients undergoing cataract surgery and to investigate whether there is a correlation between these changes and the cumulative dispersed energy (CDE) and phaco time that was needed for surgery.

Setting:

1st Department of Ophthalmology, National and Kapodistrian University of Athens Greece

Methods:

30 patients underwent cataract surgery and were divided in to two groups, the first group (Group A) had CDE less than 10 (15 patients) and the second group (Group B) had more than 20 (15 patients). The patients were followed with Swept Source OCT Angiography (DRI OCT Triton@), prior and after cataract surgery at three different intervals (1, 4 and 12 weeks postoperatively). Central choroidal thickness as well as Vascular Flow density of the superficial retina layer was measured in all visits and the changes that took place were compared between the two groups.

Results:

The mean phaco time was 1min and 27 sec in Group A and 0:22 sec in Group B, while the mean CDE was 26 in Group A and 3.03 in Group B. The mean central choroidal thickness was increased by 24.5 μm in Group A and by 15μm in Group B in the first week and there was a positive correlation between the CDE and the changes in central choroidal thickness in the first week (r=0.7, p<0.05). Those changes disappeared in the following postoperative measurements. No statistically significant changes were noted concerning the superficial vascular flow density.

Conclusions:

There appears to be a correlation between the cumulative dispersed energy (CDE) used during phacoemulsification and the changes that take place in the central choroidal thickness during the first postoperative week. Those changes seem to be non significant after the first postoperative month and have disappeared 3 months after the procedure.

Financial Disclosure:

None