Evaluation of microvascular changes in the macular area of eyes with rhegmatogenous retinal detachment without macular involvement using swept-source optical coherence tomography angiography
Received 22 June 2018
Accepted for publication 15 August 2018
Published 15 October 2018 Volume 2018:12 Pages 2059—2067
Checked for plagiarism Yes
Review by Single-blind
Peer reviewers approved by Dr Cristina Weinberg
Peer reviewer comments 2
Editor who approved publication: Dr Scott Fraser
Yuji Yoshikawa, Takuhei Shoji, Junji Kanno, Hisashi Ibuki, Kimitake Ozaki, Hirokazu Ishii, Yoshikazu Ichikawa, Itaru Kimura, Kei Shinoda
Department of Ophthalmology, Saitama Medical University, Saitama, Japan
Purpose: To evaluate microvascular changes in the macular area of eyes with rhegmatogenous retinal detachment (RRD) without macular involvement (macula-on RRD) using swept-source optical coherence tomography angiography (SS-OCTA).
Patients and methods: Five patients with macula-on RRD were eligible for analysis. All patients underwent SS-OCTA examination (Triton) for the macular area. The healthy fellow eyes were included as controls. The vessel density (VD) was calculated using binarization, and the foveal avascular zone (FAZ) was measured. The VD and FAZ area were compared between the eyes with RRD and the fellow eyes using the Wilcoxon signed rank test.
Results: The patients’ clinical characteristics were as follows: age, 49.0 years (21.0, 54.0) (median [25, 75th percentile]); preoperative best-corrected visual acuity, -0.08 (-0.08, 0.11) for RRD and -0.08 (-0.08, -0.03) for the fellow eye (P=0.50); and axial length, 27.0 (25.1, 28.7) mm for RRD and 27.4 (25.6, 28.5) mm for the fellow eye (P=0.31). The parafoveal VD was not significantly different between the eyes with RRD and the fellow eyes (P=1.00 for the superficial retina and P=0.44 for the whole retina). The FAZ area was also similar for the eyes with RRD and the fellow eyes (P=0.31 for the superficial retina and P=0.13 for the whole retina).
Conclusion: The findings of this study suggest that the macular microvasculature remains intact in eyes with macula-on RRD.
Keywords: rhegmatogenous retinal detachment, macula, optical coherence tomography angiography, vessel density
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