Background And Objective: Evaluate capillary perfusion density (CPD) in patients with diabetic macular edema (DME) undergoing fixed intravit-real aflibercept injections (IAI) through 24 months.
Patients And Methods: Prospective, interventional, single-arm study enrolling 20 patients with persistent DME. Patients received IAI every 4 weeks until DME resolution followed by extension to every 8 weeks. Optical coherence tomography angiography was obtained at baseline, 6, 12, and 24 months.
Results: Sixteen of 20 eyes completed the study. Baseline mean central subfield thickness was 420 µm, which improved to 251 µm (P < .001). The mean best-corrected visual acuity (BCVA) improved by 5.5 letters (P = .042). The whole superficial CPD decreased by 5.3% (P = .001) and the deep CPD decreased by 4.4% (P = .009). Better BCVA correlated with less CPD loss within the superficial parafovea (r = +0.66 [0.23, 0.88]; P = .006) and whole (r = +0.60 [0.12, 0.85]; P = .017) areas.
Conclusion: Superficial and deep CPD decreased despite fixed IAI through 24 months. [Ophthalmic Surg Lasers Imaging Retina. 2020;51:448-455.].
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