PurposeTo introduce novel findings of polypoidal choroidal vasculopathy (PCV) via optical coherence tomography angiography (OCTA)MethodsThis study is a retrospective chart review of 16 patients (16 eyes) with PCV. OCTA (Avanti RTVue XR) findings were evaluated and selected for analysis after agreement by two retina specialists .ResultsTwenty one polyps in 16 eyes (16 patients) with PCV were included in this study. The mean patient age was 67 years (13 men and three women). The shape of polypoidal lesions on OCTA at initial were halo (five polyps), rosette (seven polyps), and vascular network (nine polyps). Eight months after anti-vascular endothelial growth factor treatment, in a total of four eyes, seven polyps could be followed up completely, the two halo type polypoidal lesions changed to rosette and vascular network type. The lesions of three rosette and two vascular network type lesions did not change in shape. In addition, the size of the polypoidal lesions (one among two halo types, two among three rosette types, and two among two vascular network types) decreased, but one halo type did not change and one rosette type increased in size on OCTA.ConclusionsEn-face OCTA enabled us to categorize novel types of PCV with polypoidal lesions.
We present a case of ocular toxocariasis treated successfully with oral albendazole in combination with steroids. A 26-year-old male visited the authors' clinic with the chief complaint of flying flies in his right eye. The fundus photograph showed a whitish epiretinal scar, and the fluorescein angiography revealed a hypofluorescein lesion of the scar and late leakage at the margin. An elevated retinal surface and posterior acoustic shadowing of the scar were observed in the optical coherence tomography, and Toxocara IgG was positive. The patient was diagnosed with toxocariasis, and the condition was treated with albendazole (400 mg twice a day) for a month and oral triamcinolone (16 mg for 2 weeks, once a day, and then 8 mg for 1 week, once a day) from day 13 of the albendazole treatment. The lesions decreased after the treatment. Based on this study, oral albendazole combined with steroids can be a simple and effective regimen for treating ocular toxocariasis.
Purpose: To investigate the efficacy and safety of a surgical procedure with subretinal tenecteplase (TNK) injection for displacement of thick submacular hemorrhage in patients with age-related macular degeneration (AMD). Methods: A retrospective, non-comparative, interventional case study was conducted. Medical records of patients with submacular hemorrhage secondary to AMD who underwent subretinal TNK injection were reviewed. Best-corrected visual acuity (BCVA) and spectral domain optical coherence tomography (SD-OCT) at baseline, 1 month, 3 months, and final follow-up after initial treatment were measured. Postoperative complications were identified. Results: Eleven eyes of eleven patients who underwent subretinal TNK injection for submacular hemorrhage were included. Mean BCVA at baseline was 1.85 ± 0.90 logarithm of the minimum angle of resolution (logMAR), which improved to 1.17 ± 0.63 logMAR at 3 month follow-up and 0.94 ± 0.58 logMAR at final follow-up (p = 0.011). SD-OCT results, including central foveal thickness (495.7 ± 410.7 μm → 230.5 ± 166.4 μm) and submacular hemorrhage thickness (263.3 ± 196.0 μm → 0 μm), significantly improved (p = 0.028). Complications included retinal detachment (n = 2), epiretinal membrane (n = 1), and vitreous hemorrhage (n = 1). Conclusions: Vitrectomy with subretinal TNK injection may be a good treatment option for displacement of submacular hemorrhage leading to functional and anatomical improvement.
Purpose: To determine the diurnal variation in choroidal thickness and choriocapillaris flow measured by optical coherence tomography (OCT) and optical coherence tomography angiography (OCTA) Methods: This study was a prospective study of 15 normal, young volunteers (30 eyes) who underwent OCT and OCTA examination 5 times a day at 2-hour intervals. Choroidal and choriocapillaris thicknesses were measured with the enhanced depth imaging mode of OCT. The area of flow was measured in 1-, 3-, and 6-mm-diameter areas centered at the fovea and analyzed with the split-spectrum amplitude-decorrelation angiography algorithm of OCTA. Choroidal and choriocapillaris thicknesses and flows were analyzed independently by two vitreoretinal specialists. Results: Choroidal thickness showed a significant diurnal variation. The maximum thickness was 311.31 μm at 9 a.m., and the minimum thickness was 266.75 μm at 5 p.m. (p < 0.001). In contrast, the mean choriocapillaris thickness was 15.14 μm, and remained relatively constant without a significant diurnal variation (p = 0.694). The mean choriocapillaris flow area was 0.45 mm 2 (p = 0.238) in a 1 mm area, 4.22 mm 2 (p = 0.230) in a 3-mm diameter area, and 16.94 mm 2 (p = 0.062) in a 6-mm diameter area. No diurnal variation was observed. Conclusions: Despite significant diurnal variation in choroidal thickness, choriocapillaris thickness and flow remained relatively constant over time.
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