117,481 research outputs found

    Ultra-wide-field fluorescein angiography in diabetic retinopathy: a narrative review

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    Alessandro Rabiolo,1 Mariacristina Parravano,2 Lea Querques,1,2 Maria Vittoria Cicinelli,1 Adriano Carnevali,1,3 Riccardo Sacconi,1,4 Teresa Centoducati,1 Stela Vujosevic,5 Francesco Bandello,1 Giuseppe Querques1 1Department of Ophthalmology, University Vita-Salute, Scientific Institute San Raffaele, Milan, 2G. B. Bietti Foundation – IRCCS, Rome, 3Department of Ophthalmology, University of “Magna Graecia,” Catanzaro, 4Department of Neurological and Movement Sciences, University of Verona, Verona, 5Department of Neuroscience, Ophthalmology Clinic, University of Padova, Padova, Italy Abstract: Fluorescein angiography (FA) is a useful examination in patients suffering from diabetic retinopathy (DR). Traditional angiograms explore 30°–50° of the retina at once; however, visualization of peripheral retina is fundamental in order to assess nonperfused areas, vascular leakage, microvascular abnormalities, and neovascularizations. In order to expand the field of view, wide-field and ultra-wide-field imaging has been developed allowing to image up to 200° of retinal surface in one single shot. The aim of this narrative review was to provide an overview of the role of the most recent technique of ultra-wide-field fluorescein angiography in DR. Keywords: ischemic index, targeted retinal photocoagulation, diabetic macular edema, diabetic macular ischemia, peripheral vessel leakage, capillary nonperfusio

    Natural course of adult-onset foveomacular vitelliform dystrophy: a spectral-domain optical coherence tomography analysis.

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    Abstract PURPOSE: To describe the natural course of adult-onset foveomacular vitelliform dystrophy using spectral-domain optical coherence tomography (SD-OCT). DESIGN: Retrospective study. METHODS: We reviewed the charts of all consecutive patients with adult-onset foveomacular vitelliform dystrophy who underwent SD-OCT at baseline and at least 12 months later (last visit). Main outcome measures were changes of clinical and SD-OCT features over time. RESULTS: Forty-six eyes (31 patients, 15 male and 16 female; mean age 74.6 ± 8.2 years) were included. Follow-up was 16.2 ± 6 (range, 12-30) months. Visual acuity (VA) reduced from 0.32 ± 0.22 logMAR at baseline to 0.39 ± 0.28 logMAR at last visit (P=.03). The stage of the disease was vitelliform in 28 eyes (60.8%), pseudohypopyon in 7 eyes (15.2%), vitelliruptive in 11 eyes (23.9%) at baseline; vitelliform in 23 eyes (50%), pseudohypopyon in 5 eyes (10.9%), vitelliruptive in 13 eyes (28.2%), and atrophic in 5 eyes (10.9%) at last visit. Stabilization of the disease stage, inner segment/outer segment (IS/OS) interface status, and lesion reflectivity on SD-OCT determined no VA changes (P>.05), while their worsening determined a reduction of VA (P=.03). In eyes that presented a progression of the disease stage, mean central macular thickness, maximal thickness of the lesion, and maximal width of the lesion showed a significant change (from 404.1 ± 107.6 μm to 246.1 ± 74.0 μm, P = .004; from 277.0 ± 80.8 μm to 105.3 ± 92.3 μm, P=.001; from 2324.2 ± 1250.3 μm to 1751.0 ± 858.3 μm, P = .04, respectively). CONCLUSIONS: In adult-onset foveomacular vitelliform dystrophy, progression of the lesion stage (partial/complete resorption of the material) is generally accompanied by IS/OS interface disruption/loss and visual impairment

    Natural Course of Adult-Onset Foveomacular Vitelliform Dystrophy: A Spectral-Domain Optical Coherence Tomography Analysis

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    PURPOSE: To describe the natural course of adult-onset foveomacular vitelliform dystrophy using spectral-domain optical coherence tomography (SD-OCT). DESIGN: Retrospective study. METHODS: We reviewed the charts of all consecutive patients with adult-onset foveomacular vitelliform dystrophy who underwent SD-OCT at baseline and at least 12 months later (last visit). Main outcome measures were changes of clinical and SD-OCT features over time. RESULTS: Forty-six eyes (31 patients, 15 male and 16 female; mean age 74.6 +/- 8.2 years) were included. Follow-up was 16.2 +/- 6 (range, 12-30) months. Visual acuity (VA) reduced from 0.32 +/- 0.22 logMAR at baseline to 0.39 +/- 0.28 logMAR at last visit (P = .03). The stage of the disease was vitelliform in 28 eyes (60.8%), pseudohypopyon in 7 eyes (15.2%), vitelliruptive in 11 eyes (23.9%) at baseline; vitelliform in 23 eyes (50%), pseudohypopyon in 5 eyes (10.9%), vitelliruptive in 13 eyes (28.2%), and atrophic in 5 eyes (10.9%) at last visit. Stabilization of the disease stage, inner segment/outer segment (IS/OS) interface status, and lesion reflectivity on SD-OCT determined no VA changes (P > .05), while their worsening determined a reduction of VA (P = .03). In eyes that presented a progression of the disease stage, mean central macular thickness, maximal thickness of the lesion, and maximal width of the lesion showed a significant change (from 404.1 +/- 107.6 mu m to 246.1 +/- 74.0 mu m, P = .004; from 277.0 +/- 80.8 mu m to 105.3 +/- 92.3 mu m, P = .001; from 2324.2 +/- 1250.3 mu m to 1751.0 +/- 858.3 mu m, P = .04, respectively). CONCLUSIONS: In adult-onset foveomacular vitelliform dystrophy, progression of the lesion stage (partial/complete resorption of the material) is generally accompanied by IS/OS interface disruption/loss and visual impairment. (Am J Ophthalmol 2011;152:304-313. (C) 2011 by Elsevier Inc. All rights reserved.

    Microperimetric Correlations of Autofluorescence and Optical Coherence Tomography Imaging in Dry Age-Related Macular Degeneration.

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    Abstract PURPOSE: To investigate the microperimetric correlations of autofluorescence imaging and optical coherence tomography (OCT) in dry age-related macular degeneration (AMD). DESIGN: Retrospective, observational, cross-sectional study. METHODS: Consecutive patients with dry AMD underwent a complete ophthalmologic examination, including best-corrected visual acuity (BCVA), blue fundus autofluorescence (FAF), near-infrared autofluorescence, and spectral-domain (SD)-OCT with integrated microperimetry. RESULTS: A total of 58 eyes of 29 patients (21 women; mean age 73 ± 9 years) were included. Mean BCVA was 0.28 ± 0.3 logarithm of the minimal angle of resolution (logMAR). Overall, 2842 points were analyzed as regards FAF and near-infrared autofluorescence patterns, the status of inner segment/outer segment (IS/OS) interface, and retinal sensitivity. We observed a good correlation between the FAF and near-infrared autofluorescence patterns for all the points graded (increased FAF/near-infrared autofluorescence, Pearson rho = 0.6, P = .02; decreased FAF/near-infrared autofluorescence, Pearson rho = 0.7, P = .01; normal FAF/near-infrared autofluorescence, Pearson rho = 0.7, P = .01). Mean retinal sensitivity was significantly reduced in cases of decreased FAF (4.73 ± 2.23 dB) or increased FAF (4.75 ± 2.39 dB) compared with normal FAF (7.44 ± 2.34 dB) (P = .001). Mean retinal sensitivity was significantly reduced in case of decreased near-infrared autofluorescence (3.87 ± 2.28 dB), compared with increased near-infrared autofluorescence (5.76 ± 2.44 dB) (P = .02); mean retinal sensitivity in case of increased near-infrared autofluorescence was significantly reduced compared with normal near-infrared autofluorescence (7.15 ± 2.38 dB) (P = .002). On SD-OCT, there was a high inverse correlation between retinal sensitivity and rate of disruptions in IS/OS interface (Pearson rho = -0.72, P = .001). CONCLUSION: A reduced retinal sensitivity consistently correlates with decreased FAF/near-infrared autofluorescence and a disrupted IS/OS interface. Increased near-infrared autofluorescence may represent a useful method for detection of retinal abnormalities early in dry AMD development
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