Publications by authors named "Akinori Uemura"
Purpose: The purpose of this study was to describe a case of polypoidal choroidal vasculopathy, showing a newly developed focal choroidal excavation during a 4-year follow-up period with multiple intravitreal antivascular endothelial growth factor injections.
Methods: This study was a case report.
Results: A 64-year-old man was referred for treatment of age-related macular degeneration in his left eye.
Purpose: To investigate the clinical characteristics and surgical outcomes of Stage 4 macular holes (MHs) with epiretinal proliferation (EP) and explore the pathogenesis of MH formation.
Methods: This retrospective study included consecutive patients who underwent pars plana vitrectomy for Stage 4 MH. Patients were divided into two groups based on the presence or absence of EP.
Purpose: To describe the characteristics and surgical outcomes of full-thickness macular holes (FTMHs) with persistent broad vitreomacular attachment.
Methods: This was a retrospective, observational case series. Consecutive patients undergoing pars plana vitrectomy for FTMHs with persistent broad vitreomacular attachment (study group) were reviewed.
Article Synopsis
- A study was conducted to compare the incidence of endophthalmitis, an eye infection, after vitrectomy surgeries before and during the COVID-19 pandemic when face masks were mandatory.
- The results showed a higher incidence of endophthalmitis during the COVID-mask period (0.21%) compared to the pre-COVID period (0.11%), indicating a significant increase in risk.
- The study also found a shift in the types of pathogens causing the infections, with some unexpected oral bacteria being identified during the mask period, highlighting the need for physicians to be vigilant in monitoring and treating these cases.
Purpose: To compare surgical outcomes of filtered air and sulfur hexafluoride (SF6) as an internal tamponade in patients undergoing primary 25-gauge pars plana vitrectomy for uncomplicated rhegmatogenous retinal detachment with inferior breaks.
Methods: Patients with uncomplicated rhegmatogenous retinal detachment associated with inferior breaks (between 4 and 8 o'clock positions) who were undergoing primary pars plana vitrectomy were enrolled. All eyes underwent pars plana vitrectomy and complete drainage of subretinal fluid, followed by filtered air or 20% SF6 tamponade.
Purpose: To describe the characteristics and management of full-thickness macular holes (MHs) that develop after pars plana vitrectomy for rhegmatogenous retinal detachment (RD).
Methods: Retrospective, interventional, consecutive case series. Patients who developed secondary full-thickness MHs after prior pars plana vitrectomy for RD over a 6-year period were included.
Purpose: To report a patient whose foveal avascular zone (FAZ) decreased after vitrectomy with internal limiting membrane (ILM) peeling.
Methods: A 58-year-old woman underwent successful phacovitrectomy with ILM peeling for a thin epiretinal membrane in an eye with a normal foveal contour. Optical coherence tomography angiographic en face images of the 3 mm×3 mm superficial and deep inner retinal vascular plexuses were examined preoperatively, and on days 1, 2, 9, and 37 postoperatively.
Purpose: To determine the effects of vitreomacular separation on macular thickness.
Methods: This was a retrospective, observational, cross-sectional study. Average foveal and central minimum thicknesses were measured by spectral-domain optical coherence tomography (SD-OCT) in 308 eyes of 308 healthy subjects (healthy group) and 298 normal fellow eyes of 298 patients with a unilateral macular hole (MH group).
Purpose: To determine whether the visual field defects detected within 3 months of indocyanine green (ICG)-assisted inner-limiting membrane (ILM) peeling continue to worsen over longer periods.
Methods: This was a retrospective observational case series. Four eyes with visual field defects that developed within 3 years of ICG-assisted ILM peeling for a macular hole (MH) were examined yearly for 10 years.
Purpose: To describe long-term changes in the vitreomacular relationship in normal fellow eyes of patients with unilateral idiopathic macular holes (MHs).
Methods: This is a retrospective, observational case series. The medical records of patients who underwent surgery for idiopathic MHs between May 2000 and December 2010 were reviewed.
Purpose: To investigate the relationship between the vitreomacular interface and the integrity of the photoreceptor microstructures in the normal fellow eyes of patients with unilateral macular holes.
Methods: Retrospective observational case series. Fifty-five normal fellow eyes of 55 patients with unilateral macular holes were enrolled in the study.
Purpose: To observe long-term changes in intraocular pressure (IOP) after a combined phacoemulsification, intraocular lens implantation, and vitrectomy procedure.
Methods: This was a retrospective case series at a single hospital. Of 105 consecutive cases that received combined phacoemulsification, intraocular lens implantation, and vitrectomy for macular hole or epiretinal membrane, 85 eyes (patients) were followed up for 1 year or longer.
Purpose: To report two cases of acute macular neuroretinopathy with unusually small parafoveal lesions, which showed later recurrent lesions either in the same eye or the fellow eye.
Methods: Observational case series.
Patients: In case 1, a 48-year-old woman developed a sudden onset of a tiny paracentral scotoma associated with a small reddish-brown paracentral lesion.
Purpose: To assess the incidence of iatrogenic peripheral retinal breaks in 23-gauge vitrectomy for macular diseases and to compare it with 20-gauge vitrectomy.
Methods: Retrospective, comparative, interventional case series. We compared the incidence of iatrogenic peripheral retinal breaks in 176 eyes undergoing 23-gauge vitrectomy between January 2007 and November 2009 (23-gauge group) and 153 eyes undergoing 20-gauge vitrectomy between January 2004 and June 2006 (20-gauge group) for either idiopathic macular holes or idiopathic epiretinal membranes.
Purpose: To determine the incidence of outer foveal defects after macular hole surgery and to evaluate the relationship between the defect and visual outcome.
Design: Retrospective, observational case series.
Methods: A retrospective analysis was performed on 50 eyes from 50 patients who underwent macular hole surgery with a follow-up period of 12 months or more.
Purpose: The purpose of this study was to study the effect of pars plana vitrectomy (PPV) for age-related macular degeneration with vitreous hemorrhage on choroidal neo-vascularization (CNV).
Methods: A retrospective interventional case series in which 92 eyes with age-related macular degeneration with vitreous hemorrhage that received PPV were studied. Among them, 60 eyes without pre- or posttreatment other than PPV were selected.
Purpose: To evaluate the long-term course of visual field defects after intravitreal injection of indocyanine green (ICG) during vitrectomy.
Methods: Retrospective observational case series. The medical records of seven eyes of seven patients with visual field defects after the adjunctive use of ICG during macular hole surgery were studied.
Purpose: To characterize outcomes for patients who develop full-thickness macular holes after pars plana vitrectomy.
Methods: We retrospectively analyzed data for 47 consecutive patients (47 eyes) who developed full-thickness macular holes after initial pars plana vitrectomy for a variety of indications. All patients underwent a second vitrectomy and gas tamponade with or without internal limiting membrane peeling.
Intraoperative characteristics of the posterior vitreous cortex in patients with epiretinal membrane.
Graefes Arch Clin Exp Ophthalmol
March 2008
Background: The aim of the study was to investigate the intraoperative characteristics of the posterior vitreous cortex in patients with epiretinal membranes.
Method: Fifteen eyes of 15 patients with an idiopathic epiretinal membrane that had no posterior vitreous detachment (PVD) on both slit-lamp biomicroscopy and B-scan ultrasound examination were enrolled in this study. During vitrectomy, the relationship between the posterior vitreous cortex and the epiretinal membrane was observed when PVD was created using triamcinolone acetonide.
Purpose: To report long-term anatomical and functional results after pars plana vitrectomy with internal limiting membrane (ILM) peeling using triamcinolone acetonide (TA) for idiopathic macular holes.
Design: Prospective, consecutive, interventional case series.
Methods: Ninety-six eyes of 94 patients who underwent macular hole surgery with TA-assisted ILM peeling were included in the study.
Purpose: To report a case of cytomegalovirus (CMV) retinitis after intravitreous injection of triamcinolone for a vitrectomized eye in an immunocompetent patient.
Design: Observational case report.
Methods: Review of medical records.
Article Synopsis
- The study aimed to evaluate the impact of injecting triamcinolone acetonide (TA) after a specific eye surgery (PPV) for diabetic macular edema (DME).
- In a controlled trial, one group received PPV with TA while another group had PPV alone, with both groups monitored for changes in visual acuity and foveal thickness over a year.
- Results showed initial improvements in vision and foveal thickness in the TA group, but these benefits declined over time, leading to worse outcomes compared to the control group at 12 months.
Purpose: To determine the long-term visual outcomes after vitreous surgery for macular edema with foveal hemorrhage associated with branch retinal vein occlusion (BRVO).
Methods: One hundred twenty eyes of 120 patients underwent pars plana vitrectomy with or without internal limiting membrane (ILM) peeling for macular edema with foveal hemorrhage due to BRVO with a minimum 12 months of follow-up. Simultaneous cataract extraction with intraocular lens implantation was performed on 117 phakic eyes.
Purpose: To report results of an investigation of visual acuity (VA) and foveal thickness in diabetic macular edema (DME) patients after vitrectomy.
Methods: A retrospective study was performed of the records of 47 patients (61 eyes) who received pars plana vitrectomy (PPV) for DME. All eyes were followed up for over 6 months (mean, 24.
Purpose: To evaluate long-term intraocular pressure (IOP) response after intravitreal injections of different doses of triamcinolone acetonide (TA) upon completion of pars plana vitrectomy (PPV) for macular edema secondary to diabetic retinopathy or retinal vein occlusion.
Patients And Methods: Retrospective, consecutive, comparative, interventional case series. Twenty-seven eyes of 25 consecutive patients with macular edema associated with diabetic retinopathy (n=18) or retinal vein occlusion (n=9), who underwent PPV for the treatment of macular edema between January 2003 and December 2003, were included.