Imaging analysis with optical coherence tomography angiography after primary repair of macula-off rhegmatogenous retinal detachment
To evaluate changes in the microcirculation of various retinal layers and choroid following successful repair of macula-off rhegmatogenous retinal detachment (RRD) using optical coherence tomography angiography (OCTA).
Twenty-eight patients (28 eyes) who underwent successful repair of macula-off RRD were prospectively investigated. Differences in OCTA characteristics between retinal detachment (RD) and fellow eyes were compared. Quantitative measurements of the retinal capillary and choriocapillary associated with the preoperative and intraoperative factors were analyzed.
The mean vessel and parafoveal vessel densities were significantly lower in the superficial retinal capillary plexus (SCP) and deep retinal capillary plexus (DCP) in the RD eyes than the fellow eyes. Presence of preoperative intraretinal separation in the RD eyes was significantly associated with both an enlarged foveal avascular zone (P = 0.022) and a lower DCP vessel density (P = 0.031) postoperatively. Eyes with a scleral buckle alone had a greater postoperative subfoveal choroidal thickness (P = 0.037). Eyes undergoing vitrectomy alone had a higher postoperative vessel density in the choriocapillaris (P = 0.035). Eyes undergoing a vitrectomy and scleral buckle had a lower SCP (P = 0.031) and DCP (P = 0.035) vessel density postoperatively.
Macula-off RRD may cause not only retinal structural damage but also decreased retinal perfusion even after successful anatomical repair. Our findings suggested that RD eyes had a significantly lower vessel density than fellow eyes after surgery. The combined procedure might result in a lower vessel density, as compared with a scleral buckle or vitrectomy alone.
KeywordsImaging analysis Optical coherence tomography angiography Rhegmatogenous retinal detachment Macula-off
Compliance with ethical standards
Conflict of interest
The authors declare that they have no conflict of interest.
All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.
Informed consent was obtained from all individual participants included in the study.
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