CORRELATION BETWEEN CYSTOID SPACES IN CHRONIC DIABETIC MACULAR EDEMA AND CAPILLARY NONPERFUSION DETECTED BY OPTICAL COHERENCE TOMOGRAPHY ANGIOGRAPHY. (December 2016)

• Record Type: Journal Article
• Authors: Mané, Valérie; Dupas, Bénédicte; Gaudric, Alain; Bonnin, Sophie; Pedinielli, Alexandre; Bousquet, Elodie; Erginay, Ali; Tadayoni, Ramin; Couturier, Aude
• Is Part Of: Retina. Volume 36(2016)Supplement 1
• Publication Date: 2016-12
• Subjects: anti-VEGF -- capillary density -- capillary dropout -- capillary nonperfusion -- capillary plexus -- cystoid macular edema -- diabetic macular edema -- diabetic retinopathy -- optical coherence tomography angiography; Retina -- Diseases -- Periodicals; Retinal Diseases; Vitreous Body; 617.735
• DOI: 10.1097/IAE.0000000000001289
• Languages: English
• ISSNs: 0275-004X

Abstract

Abstract : Purpose: To study the relationship between the location of cystoid spaces and retinal capillary nonperfusion areas in diabetic cystoid macular edema (DCME). Methods: In this retrospective study, 24 eyes of 21 patients with chronic DCME were followed using optical coherence tomography angiography. The capillary density of the superficial capillary plexus and deep capillary plexus was measured using AngioAnalytics software in all DCME eyes and in 20 healthy controls. Diabetic cystoid macular edema improved spontaneously or after treatment in 11 eyes. Results: The intraretinal cystoid spaces were surrounded by capillary-flow void areas in the superficial capillary plexus in 71% of cases and in the deep capillary plexus in 96% of cases. The deep capillary plexus had lost its regular pattern in all cases. The capillary density was decreased in both plexus (mean decrease of −23.0% in the superficial capillary plexus and −12.4% in the deep capillary plexus vs. normal). In the 11 cases with DCME resolution, the capillary did not reperfuse in areas of resolved cystoid spaces, and the capillary density did not change significantly. Conclusion: In chronic DCME, cystoid spaces were located within capillary dropout areas. No reperfusion occurred after DCME resolution. The impact of the severity of this nonperfusion on the risk of recurrence of DCME remains to be clarified. Abstract : In 24 eyes with chronic diabetic cystoid macular edema, optical coherence tomography angiography showed that the cystoid spaces were located within the larger areas of capillary-flow voids. Capillary density was decreased in the superficial and deep capillary plexus. No reperfusion occurred in the areas of resolved cystoid spaces.