scholarly journals Effect of rhegmatogenous retinal detachment on preoperative and postoperative retinal sensitivities

2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Hiroshi Noda ◽  
Shuhei Kimura ◽  
Mio Morizane Hosokawa ◽  
Yusuke Shiode ◽  
Shinichiro Doi ◽  
...  
Keyword(s):  
Optical Coherence Tomography ◽  
Retrospective Study ◽  
Retinal Detachment ◽  
Rhegmatogenous Retinal Detachment ◽  
Scleral Buckling ◽  
Retinal Sensitivity ◽  
Optical Coherence ◽  
Measurement Point ◽  
Swept Source ◽  
Before And After

AbstractThis retrospective study investigated foveal and perifoveal retinal sensitivities using microperimetry before and after surgery for rhegmatogenous retinal detachment (RRD). Consecutive patients with RRD who underwent vitrectomy or scleral buckling were included. Comprehensive ophthalmological examinations, including microperimetry and swept-source optical coherence tomography, were performed before and 6 months after surgery. Pre- and postoperative retinal sensitivities at the fovea and 4 perifoveal measurement points farthest from the fixation point, both vertically and horizontally (superior, inferior, nasal, and temporal) were examined. A total of 34 foveal and 136 perifoveal measurement points in 34 eyes of 34 patients were evaluated. The postoperative retinal sensitivity was significantly higher than the preoperative value at foveal and perifoveal points with (P < 0.001 for both) and without (fovea: P = 0.005, perifovea: P < 0.001) RRD. The postoperative retinal sensitivity was significantly lower at foveal (P < 0.01) and perifoveal (P < 0.001) points with preoperative RRD than at points without preoperative RRD; furthermore, it was significantly better at points with ellipsoid zone (Ez) continuity than at points with Ez discontinuity (fovea: P < 0.01, perifovea: P < 0.001). RRD deteriorates retinal sensitivity, regardless of its presence or absence at the measurement point before surgery. Postoperative Ez continuity is important for good postoperative retinal sensitivity.

scholarly journals Preoperative and Postoperative Optical Coherence Tomography Findings in Patients with Rhegmatogenous Retinal Detachment Involving the Macular Region

2013 ◽  
Vol 2013 ◽  
pp. 1-6 ◽  
Author(s):  
Asaki Matsui ◽  
Hiroshi Toshida ◽  
Rio Honda ◽  
Takahiko Seto ◽  
Toshihiko Ohta ◽  
...  
Keyword(s):  
Optical Coherence Tomography ◽  
Visual Acuity ◽  
Retinal Detachment ◽  
Rhegmatogenous Retinal Detachment ◽  
Outer Nuclear Layer ◽  
Optical Coherence ◽  
External Limiting Membrane ◽  
Photoreceptor Layer ◽  
Before And After ◽  
Morphologic Changes

Purpose. To evaluate morphologic changes of the macula, we observed eyes with rhegmatogenous retinal detachment (RRD) involving the macular region by optical coherence tomography (OCT). Subjects and Methods. We studied 26 eyes with RRD before and after surgery, assessing visual acuity, the height of retinal detachment at the fovea (HRD), and morphologic changes of the macular region. The interval between the onset and surgery was also determined. We examined the external limiting membrane (ELM) after surgery and the continuity of the inner segment-outer segment junction (IS/OS junction) of the photoreceptor layer. Results. Impairment of visual acuity was observed when HRD was over 1,000 μm, when there was outer nuclear layer edema before surgery, and when there was IS/OS junction disruption 3 months after surgery. However, 67% of eyes with a continuous ELM and IS/OS junction disruption 3 months after surgery eventually showed restoration of the continuity of IS/OS junction at 6 months. Conclusions. Impairment of visual acuity was observed in eyes with HRD  μm, preoperative outer nuclear layer edema, and IS/OS junction disruption 3 months postoperatively. It is suggested that continuity of ELM might affect restoration of IS/OS junction after surgery for retinal detachment.

scholarly journals Changes in Iris Perfusion Following Scleral Buckle Surgery for Rhegmatogenous Retinal Detachment: An Anterior Segment Optical Coherence Tomography Angiography (AS-OCTA) Study

2020 ◽  
Vol 9 (4) ◽  
pp. 1231
Author(s):  
Rossella D’Aloisio ◽  
Pasquale Viggiano ◽  
Enrico Borrelli ◽  
Mariacristina Parravano ◽  
Aharrh-Gnama Agbèanda ◽  
...  
Keyword(s):  
Optical Coherence Tomography ◽  
Retinal Detachment ◽  
Rhegmatogenous Retinal Detachment ◽  
Optical Coherence Tomography Angiography ◽  
Anterior Segment ◽  
Predictive Biomarkers ◽  
Scleral Buckling ◽  
Optical Coherence ◽  
Nasal Region ◽  
Perfusion Density

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.

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