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Changes in Iris Perfusion Following Scleral Buckle Surgery for Rhegmatogenous Retinal Detachment: An Anterior Segment Optical Coherence Tomography Angiography (AS-OCTA) Study
| Content Provider | MDPI |
|---|---|
| Author | D’Aloisio, Rossella Aharrh-Gnama, Agbèanda Viggiano, Pasquale Borrelli, Enrico Parravano, Mariacristina Evangelista, Federica Ferro, Giada Toto, Lisa Mastropasqua, Rodolfo |
| Copyright Year | 2020 |
| Description | Purpose: To investigate iris vasculature changes following scleral buckling (SB) surgery in eyes with rhegmatogenous retinal detachment (RRD) with anterior-segment (AS) optical coherence tomography angiography (OCTA). Methods: In this prospective study, enrolled subjects were imaged with an SS-OCTA system (PLEX Elite 9000, Carl Zeiss Meditec Inc., Dublin, CA, USA). Image acquisition of the iris was obtained using an AS lens and a manual focusing adjustment in the iris using the retina imaging software. The quantitative analysis was performed in eight different iris regions: (i) superior, (ii) supero-temporal, (iii) supero-nasal, (iv) nasal, (v) temporal, (vi) inferior, (vii) infero-temporal, (viii) infero nasal which, were defined as squares with area of 1.5 mm2. Results: Fifteen eyes of 15 patients (six females; nine males) were included. Anterior segment optical coherence tomography angiography (AS-OCTA) parameters of the iris were statistically compared at baseline (preoperatively), 1 week, 1 month and 6 months after SB. At post-operative 1 week, perfusion density (PD) showed a significant decrease from 66.8 ± 13.2% to 58.55 ± 12.0% in the iris supero-nasal region (p = 0.016). However, at the 1-month follow-up visit, iris PD was significantly lower in all the analyzed iris regions, apart from the superior one. Conclusions: This study is the first description of AS-OCTA in patients undergoing SB. Our results showed a uniform reduction of the iris vessel network at 1 month after surgery, supporting the clinical use of AS-OCTA to identify early iris perfusion changes as potential predictive biomarkers of vascular disorders. |
| Starting Page | 1231 |
| e-ISSN | 20770383 |
| DOI | 10.3390/jcm9041231 |
| Journal | Journal of clinical medicine |
| Issue Number | 4 |
| Volume Number | 9 |
| Language | English |
| Publisher | MDPI |
| Publisher Date | 2020-04-24 |
| Access Restriction | Open |
| Subject Keyword | Journal of clinical medicine Journal of Clinical Medicine Ophthalmology Optical Coherence Tomography Angiography Rhegmatogenous Retinal Detachment Scleral Buckling Anterior-segment |
| Content Type | Text |
| Resource Type | Article |
