Macular edema after phacoemulsification in patients with diabetic retinopathy

Session Details

Session Title: Cataract Surgery: Special Cases

Session Date/Time: Tuesday 17/09/2019 | 08:30-10:30

Paper Time: 09:12

Venue: Free Paper Forum: Podium 2

First Author: : V.Evgrafov RUSSIA

Co Author(s): :    G. Kudasheva   I. Medvedev                          

Abstract Details

Purpose:

to determine the frequency of fovea-involved macular edema in patients with diabetic retinopathy (DR) after phacoemulsification

Setting:

Pirogov Russian National Research Medical University

Methods:

In a prospective, observational study, participants (N = 156) with DR without OCT central subfield (CSF) thickening underwent phacoemulsification. This group was subdivided to those without DME and with non-central involved DME. The primary outcome was development of central-involved ME defined as OCT CSF thickness ≥ 310μm (Cirrus, Carl Zeiss). BCVA was measured by Sivtsev-Golovin charts. Patients were evaluated before operation and after 1 and 3 months after. Point estimate for binary outcomes, and corresponding exact 95% confidence interval were computed. Association of baseline factors with the primary outcome was evaluated using Fisher’s exact test.

Results:

1 month postoperatively central-involved DME was observed in 0% (95%CI: 0-20%) of 58 eyes with no pre-operative DME and in 16% (95%CI: 10-22%) of 98 eyes without central involved DME. After 3 months central-involved ME was observed in 5% (95%CI: 3-7%) of 58 eyes with no pre-operative DME and in 23% (95%CI: 19-27%) of 98 eyes without central involved DME. By the end of the observation period 86% of eyes without central-involved DME had BCVA 0.5 or better, while only 64% of those without central-involved DME reached BCVA 0.5 or better.

Conclusions:

Non-central DME may increase risk of developing central-involved ME after phacoemulsification. Central-involved ME after phacoemulsification leads to a significant reduction in visual acuity in these patients. Patients with severe nonproliferative and proliferative DR have increased risk of developing central-involved ME after phacoemulsification

Financial Disclosure:

None