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1.
J Med Genet ; 61(1): 93-101, 2023 Dec 21.
Artigo em Inglês | MEDLINE | ID: mdl-37734847

RESUMO

BACKGROUND: Leber's hereditary optic neuropathy (LHON) is a mitochondrial disorder characterised by complex I defect leading to sudden degeneration of retinal ganglion cells. Although typically associated with pathogenic variants in mitochondrial DNA, LHON was recently described in patients carrying biallelic variants in nuclear genes DNAJC30, NDUFS2 and MCAT. MCAT is part of mitochondrial fatty acid synthesis (mtFAS), as also MECR, the mitochondrial trans-2-enoyl-CoA reductase. MECR mutations lead to a recessive childhood-onset syndromic disorder with dystonia, optic atrophy and basal ganglia abnormalities. METHODS: We studied through whole exome sequencing two sisters affected by sudden and painless visual loss at young age, with partial recovery and persistent central scotoma. We modelled the candidate variant in yeast and studied mitochondrial dysfunction in yeast and fibroblasts. We tested protein lipoylation and cell response to oxidative stress in yeast. RESULTS: Both sisters carried a homozygous pathogenic variant in MECR (p.Arg258Trp). In yeast, the MECR-R258W mutant showed an impaired oxidative growth, 30% reduction in oxygen consumption rate and 80% decrease in protein levels, pointing to structure destabilisation. Fibroblasts confirmed the reduced amount of MECR protein, but failed to reproduce the OXPHOS defect. Respiratory complexes assembly was normal. Finally, the yeast mutant lacked lipoylation of key metabolic enzymes and was more sensitive to H2O2 treatment. Lipoic Acid supplementation partially rescued the growth defect. CONCLUSION: We report the first family with homozygous MECR variant causing an LHON-like optic neuropathy, which pairs the recent MCAT findings, reinforcing the impairment of mtFAS as novel pathogenic mechanism in LHON.


Assuntos
Doenças Mitocondriais , Atrofia Óptica Hereditária de Leber , Criança , Humanos , DNA Mitocondrial/genética , Peróxido de Hidrogênio/metabolismo , Mutação , Atrofia Óptica Hereditária de Leber/genética , Atrofia Óptica Hereditária de Leber/terapia , Saccharomyces cerevisiae/genética
2.
Artigo em Inglês | MEDLINE | ID: mdl-39145794

RESUMO

KEY MESSAGES     : WHAT IS KNOWN : Geographic atrophy could be associated with MNV or other vascular alterations. Intraretinal fluid could be present in GA also without neovascularization. WHAT IS NEW : GAIN is a novel clinical entity characterized by GA and an intraretinal neovascular network. GAIN could be exudative or non-exudative.

3.
Artigo em Inglês | MEDLINE | ID: mdl-38689123

RESUMO

BACKGROUND: Geographic atrophy (GA) is an advanced, irreversible, and progressive form of age-related macular degeneration (AMD). Structural optical coherence tomography (OCT) and OCT angiography (OCTA) have been largely used to characterize this stage of AMD and, more importantly, to define biomarkers associated with the development and progression of GA in AMD. METHODS: Articles pertaining to OCT and OCTA biomarkers related to the development and progression of GA with relevant key words were used to search in PubMed, Researchgate, and Google Scholar. The articles were selected based on their relevance, reliability, publication year, published journal, and accessibility. RESULTS: Previous reports have highlighted various OCT and OCTA biomarkers linked to the onset and advancement of GA. These biomarkers encompass characteristics such as the size, volume, and subtype of drusen, the presence of hyperreflective foci, basal laminar deposits, incomplete retinal pigment epithelium and outer retinal atrophy (iRORA), persistent choroidal hypertransmission defects, and the existence of subretinal drusenoid deposits (also referred to as reticular pseudodrusen). Moreover, biomarkers associated with the progression of GA include thinning of the outer retina, photoreceptor degradation, the distance between retinal pigment epithelium and Bruch's membrane, and choriocapillaris loss. CONCLUSION: The advent of novel treatment strategies for GA underscores the heightened need for prompt diagnosis and precise monitoring of individuals with this condition. The utilization of structural OCT and OCTA becomes essential for identifying distinct biomarkers associated with the initiation and progression of GA.

4.
Graefes Arch Clin Exp Ophthalmol ; 262(7): 2101-2109, 2024 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-38326629

RESUMO

PURPOSE: To assess the relationship of optical coherence tomography (OCT) findings and progression to foveal atrophy in a cohort of eyes with extrafoveal geographic atrophy (GA) and age-related macular degeneration (AMD) at inclusion. METHODS: We retrospectively analyzed 45 participants (45 eyes) with extrafoveal GA at baseline and with 2 years of regular follow-ups. Several OCT qualitative features (i.e., presence of foveal flat pigment epithelium detachment with a thin double layer sign [DLS] and reticular pseudodrusen, GA focality) and quantitative measurements (outer retinal layer thickness, retinal pigment epithelium [RPE] to Bruch's membrane [BM] volume, minimum distance from the central foveal circle, and untransformed GA lesion size area) were assessed at baseline. Logistic regression analyses were carried out to identify independent significant predictors and compute odds ratios (ORs) for the risk of the development of atrophy. RESULTS: At month 24, 26 eyes (57.8%) developed atrophy in the foveal central circle, while 11 eyes (24.4%) developed atrophy in the foveal central point. Significant independent predictive features for the development of atrophy in the foveal central circle included foveal outer retinal thickness (OR, 0.867; p = 0.015), minimum distance from the foveal central circle (OR, 0.992; p = 0.022), and foveal thin DLS (OR, 0.044; p = 0.036). The only independent predictive feature for the development of atrophy in the foveal central point was the presence of foveal thin DLS (OR, 0.138; p = 0.017). CONCLUSIONS: We identified OCT risk factors for 2-year foveal atrophy in eyes with untreated extrafoveal GA at baseline.


Assuntos
Progressão da Doença , Angiofluoresceinografia , Fóvea Central , Atrofia Geográfica , Epitélio Pigmentado da Retina , Tomografia de Coerência Óptica , Acuidade Visual , Humanos , Tomografia de Coerência Óptica/métodos , Fóvea Central/patologia , Feminino , Atrofia Geográfica/diagnóstico , Atrofia Geográfica/etiologia , Masculino , Estudos Retrospectivos , Fatores de Risco , Idoso , Seguimentos , Epitélio Pigmentado da Retina/patologia , Angiofluoresceinografia/métodos , Fundo de Olho , Idoso de 80 Anos ou mais , Fatores de Tempo , Degeneração Macular/diagnóstico , Pessoa de Meia-Idade
5.
Graefes Arch Clin Exp Ophthalmol ; 262(1): 73-80, 2024 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-37773291

RESUMO

PURPOSE: To identify the baseline predictors of anti-VEGF treatment response at 3 years in patients affected by choroidal neovascularization (CNV) secondary to central serous chorioretinopathy (CSCR). METHODS: In this retrospective longitudinal study, medical records of patients diagnosed with CNV secondary to CSCR and treated using anti-VEGF injections between April 2015 and May 2020 were reviewed. The potential qualitative and quantitative predictors of treatment response were identified or measured based on the multimodal imaging examination available for each patient at the baseline, including structural OCT, fluorescein angiography (FA), indocyanine green angiography (ICGA), and OCT-angiography (OCT-A). Univariate and multivariate analyses were performed. RESULTS: Twenty-nine eyes from 29 patients affected by CNV complicating CSCR were included in the study. At the end of the 3-year follow-up, the mean BCVA was 20/50 Snellen equivalent (0.38 ± 0.36 LogMAR), and no significant difference with baseline BCVA (0.37 ± 0.29 LogMAR) was found (p = 0.9). Twenty out of 29 eyes (69%) had active lesions at the end of the follow-up. At multivariate analysis, none of the included features was independently associated with the 3-year BCVA outcome. Pigment epithelium detachment (PED) height (ß = 0.017, p = 0.028) and outer limiting membrane (OLM) preservation at the fovea (ß = -5.637, p = 0.026) were independently associated with the CNV activity at 3 years. CONCLUSION: PED height and OLM obliteration at the fovea might be considered baseline predictors of lesion activity at 3-year follow-up in patients with CNV secondary to CSCR treated with anti-VEGF therapy.


Assuntos
Coriorretinopatia Serosa Central , Neovascularização de Coroide , Descolamento Retiniano , Humanos , Estudos Longitudinais , Estudos Retrospectivos , Coriorretinopatia Serosa Central/diagnóstico , Descolamento Retiniano/diagnóstico , Neovascularização de Coroide/diagnóstico , Neovascularização de Coroide/tratamento farmacológico , Neovascularização de Coroide/etiologia , Angiofluoresceinografia/métodos , Epitélio Pigmentado da Retina/patologia , Tomografia de Coerência Óptica/métodos , Verde de Indocianina
6.
Artigo em Inglês | MEDLINE | ID: mdl-39042148

RESUMO

PURPOSE: To assess the sensitivity and specificity of the "triple layer sign" (TLS) (retinal pigment epithelium (RPE), neovascular tissue, and Bruch's membrane) on structural optical coherence tomography (OCT) images for the diagnosis of treatment-naïve non-exudative type-1 macular neovascularization (NE-MNV) in age-related macular degeneration (AMD). DESIGN: Cross-sectional study. METHODS: Two masked retinal experts evaluated the presence of the TLS in eyes with NE-MNV and controls with an RPE elevation without exudation due to other causes than NE-MNV in AMD [e.g., medium-large drusen, cuticular drusen, basal laminar deposits (BlamD)]. RESULTS: 130 eyes of 98 consecutive patients met the study criteria; 40 eyes of 40 patients satisfied the criteria for being included in the NE-MNV secondary to AMD group (27 females, 13 males, with a mean age of 73.8 ± 8.0 years), and 90 eyes of 58 patients met the criteria to be included in the control group (31 eyes were included in the medium-to-large drusen sub-group, 32 eyes in the cuticular drusen sub-group, and 27 eyes in the BlamD group. The TLS was observed in 39/40 patients with NE-MNV and 8/90 controls. The sensitivity and specificity of the TLS for the diagnosis of NE-MNV were 97% and 91%, respectively. CONCLUSIONS: The TLS on OCT demonstrated high sensitivity and specificity values in detecting treatment-naive type 1 NE-MNV.

7.
Graefes Arch Clin Exp Ophthalmol ; 262(1): 261-265, 2024 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-37584789

RESUMO

PURPOSE: Peripapillary hyperreflective ovoid mass-like structures (PHOMS) represent an optical coherence tomography (OCT) finding that has been characterized in different forms of pseudopapilledema. The aim of this study was to investigate the prevalence of PHOMS in patients affected by acute LHON using structural OCT, and to provide a detailed description of these findings. METHODS: Patients with a clinical and molecularly confirmed diagnosis of acute LHON (visual loss having occurred less than 6 months) were enrolled from the neuro-ophthalmology clinic at San Raffaele Scientific Institute. Patients had a complete ophthalmologic evaluation, including imaging with structural OCT. RESULTS: Our analysis included 16 patients (21 eyes-8 males and 8 females) with acute LHON. Structural OCT exhibited PHOMS in 12 eyes from 9 patients with a prevalence rate of 57.1%. In a subsequent topographical assessment in the peripapillary area, the most common location of PHOMS was the temporal region (12 out of 12 eyes), while the nasal region was affected in 2 eyes (16.7%). Considering the 12 eyes with PHOMS, mean ± SD temporal peripapillary RNFL thickness was 87.5 ± 28.4 microns. The temporal peripapillary RNFL thickness was significantly lower in eyes without PHOMS (63.7 ± 32.2 microns; P = 0.40). At the 12-month follow-up visit, PHOMS disappeared in 10 out of 12 eyes. CONCLUSIONS: Acute LHON eyes have PHOMS which are mainly confined to the temporal peripapillary sector. PHOMS may represent swelled retinal fibers that have herniated or are in stasis.


Assuntos
Atrofia Óptica Hereditária de Leber , Doenças do Nervo Óptico , Masculino , Feminino , Humanos , Atrofia Óptica Hereditária de Leber/diagnóstico , Retina , Tomografia de Coerência Óptica/métodos
8.
Retina ; 44(9): 1504-1512, 2024 09 01.
Artigo em Inglês | MEDLINE | ID: mdl-39167571

RESUMO

PURPOSE: To investigate the pathophysiology and prognostic significance of acute Henle fiber layer (HFL) hyperreflectivity in placoid diseases by examining its relationship with impaired choroidal flow and persistent photoreceptor disruption. METHODS: Retrospective-prospective observational study on patients with placoid diseases. Indocyanine green angiography and optical coherence tomography were performed during the acute phase and follow-up. Impaired choroidal flow, HFL hyperreflectivity, and persistent ellipsoid zone disruption, their colocalization index, and their associations with initial and final visual acuity were explored. RESULTS: Sixteen eyes from eight patients (mean age, 25.3 ± 6.44 years) were included (median follow-up, 13.5 months). Quantitative analysis revealed significant correlations between areas of impaired choroidal flow, HFL hyperreflectivity, and persistent ellipsoid zone disruption (correlation coefficients of 0.69, 0.63, and 0.46, respectively). Impaired choroidal flow area exceeded HFL hyperreflectivity (P = 0.002) and ellipsoid zone disruption (P = 0.003). A noteworthy 94% nonrandom overlap between HFL hyperreflectivity and ellipsoid zone disruption was observed. Worse initial visual acuity correlated with foveal involvement (P = 0.0002), thicker choroid (P = 0.001), larger impaired choroidal flow areas (P = 0.02), and thinner outer retina post lesion inactivation (P = 0.04). CONCLUSION: Henle fiber layer hyperreflectivity predicted photoreceptor recovery potential in placoid diseases. If HFL hyperreflectivity corresponds to acute HFL damage, it may suggest more severe involvement of the entire photoreceptor length.


Assuntos
Corioide , Angiofluoresceinografia , Tomografia de Coerência Óptica , Acuidade Visual , Humanos , Tomografia de Coerência Óptica/métodos , Feminino , Masculino , Adulto , Estudos Retrospectivos , Acuidade Visual/fisiologia , Angiofluoresceinografia/métodos , Estudos Prospectivos , Prognóstico , Adulto Jovem , Corioide/patologia , Corioide/diagnóstico por imagem , Corioide/irrigação sanguínea , Adolescente , Seguimentos , Doenças Retinianas/fisiopatologia , Doenças Retinianas/diagnóstico , Fundo de Olho , Doença Aguda
9.
Retina ; 44(10): 1688-1695, 2024 10 01.
Artigo em Inglês | MEDLINE | ID: mdl-39287531

RESUMO

PURPOSE: To explore changes in reticular pseudodrusen (RPD) number and location after the development of macular neovascularization (MNV) in eyes with prior intermediate age-related macular degeneration, focusing on different retinal regions differently affected by MNV. METHODS: This retrospective longitudinal study included intermediate age-related macular degeneration eyes with RPD that developed MNV. Reticular pseudodrusen were assessed at baseline when MNV was diagnosed (MNV stage) and after anti-vascular endothelial growth factor treatment. Three regions of interest were considered: MNV area, subretinal fluid (SRF) area, and a marginal area of 1,000 µm around SRF (marginal zone). Reticular pseudodrusen counts were compared with age- and sex-matched control eyes with RPD that did not develop MNV. RESULTS: Reticular pseudodrusen number exhibited a significant decrease after MNV development in the MNV area (P = 0.048) and in the area with SRF (P = 0.078). A statistically significant decrease was also disclosed in the marginal area around SRF (P = 0.002), associated with larger SRF areas. Control eyes did not show any significant change in the RPD count. CONCLUSION: Reticular pseudodrusen reduction after MNV development suggests a complex interplay involving the MNV itself, the presence of SRF, and trophic changes. The results of this study highlight the role of MNV in retinal nutritional balance and provide intriguing results in the RPD life cycle.


Assuntos
Inibidores da Angiogênese , Angiofluoresceinografia , Drusas Retinianas , Neovascularização Retiniana , Tomografia de Coerência Óptica , Humanos , Estudos Retrospectivos , Feminino , Drusas Retinianas/diagnóstico , Masculino , Idoso , Tomografia de Coerência Óptica/métodos , Angiofluoresceinografia/métodos , Idoso de 80 Anos ou mais , Inibidores da Angiogênese/uso terapêutico , Inibidores da Angiogênese/administração & dosagem , Neovascularização Retiniana/diagnóstico , Neovascularização Retiniana/etiologia , Neovascularização Retiniana/fisiopatologia , Fator A de Crescimento do Endotélio Vascular/antagonistas & inibidores , Injeções Intravítreas , Acuidade Visual , Seguimentos , Neovascularização de Coroide/tratamento farmacológico , Neovascularização de Coroide/fisiopatologia , Neovascularização de Coroide/diagnóstico , Neovascularização de Coroide/etiologia , Degeneração Macular Exsudativa/diagnóstico , Degeneração Macular Exsudativa/tratamento farmacológico , Fundo de Olho
10.
Retina ; 44(4): 707-713, 2024 Apr 01.
Artigo em Inglês | MEDLINE | ID: mdl-38064659

RESUMO

PURPOSE: To assess the intersession repeatability of reading performance measures in patients with previously treated neovascular age-related macular degeneration and good best-corrected visual acuity (≥20/40 Snellen). METHODS: Ninety-one patients (91 eyes) with a diagnosis of previously treated neovascular age-related macular degeneration and good best-corrected visual acuity (≥20/40 Snellen) were prospectively enrolled. Reading performance metrics were assessed using Radner charts, and these measurements were repeated after 7 days to obtain the intersession repeatability. To test repeatability, we calculated the intraclass correlation coefficient, the 95% coefficient of repeatability, and the coefficient of variation for each reading parameter: 1) reading acuity (RA-LogRAD); 2) maximal reading speed-words per minute; 3) RA score (RA score-LogRAD); and 4) critical print size-LogRAD. RESULTS: Mean ± standard deviation best-corrected visual acuity was 0.13 ± 0.01 logMAR [range: 0.00-0.30 logMAR]. The intraclass correlation coefficient values indicated a good reliability for all the analyzed metrics (0.901 for RA; 0.859 for max reading speed; 0.906 for RA score; and 0.868 for critical print size). The coefficient of repeatability was 0.2 LogRAD for RA, 63.2 words per minute for max reading speed, 0.2 LogRAD for RA score, and 0.2 LogRAD for critical print size. Coefficient of variation was 5.5% for RA, 8.9% for max reading speed, 5.8% for RA score, and 6.9% for critical print size. CONCLUSION: Reading performance metrics are characterized by good values of intersession repeatability in patients with neovascular age-related macular degeneration with good best-corrected visual acuity. Our findings may grant the employment of such measures in trials assessing the visual outcome in these patients.


Assuntos
Degeneração Macular , Testes Visuais , Humanos , Leitura , Reprodutibilidade dos Testes , Acuidade Visual
11.
Retina ; 44(6): 997-1005, 2024 06 01.
Artigo em Inglês | MEDLINE | ID: mdl-38261803

RESUMO

BACKGROUND: To describe the occurrence of nonexudative intraretinal fluid (IRF) in intermediate age-related macular degeneration. METHODS: A retrospective study was designed to include consecutive cases with intermediate age-related macular degeneration associated with IRF. A multimodal imaging approach was used to confirm diagnosis of IRF in intermediate age-related macular degeneration. Multimodal imaging included color fundus photograph, fundus autofluorescence, fluorescein angiography, indocyanine green angiography, optical coherence tomography, and optical coherence tomography angiography. RESULTS: Ten eyes of 10 patients (2 male and 8 female patients, ages 68-80 years) showing IRF in intermediate age-related macular degeneration were included in the study. The mean best-corrected visual acuity was 20/40 Snellen equivalent. Multimodal imaging including fluorescein angiography/indocyanine green angiography and optical coherence tomography demonstrated the absence of macular neovascularization in all cases; optical coherence tomography-angiography did not detect any abnormal flow signal associated with IRF. Seven of 10 patients developed IRF in correspondence of pigment epithelium detachment. Three of 10 patients presented IRF in correspondence of an area of nascent geographic atrophy. CONCLUSION: Nonexudative intraretinal fluid in intermediate age-related macular degeneration is a novel, distinctive feature that is characterized by the presence of IRF with no evidence of macular neovascular lesions. The authors described different phenotypes of IRF in intermediate age-related macular degeneration. The definite diagnosis of this condition requires further studies with thorough application of multimodal imaging.


Assuntos
Angiofluoresceinografia , Imagem Multimodal , Líquido Sub-Retiniano , Tomografia de Coerência Óptica , Acuidade Visual , Humanos , Idoso , Feminino , Masculino , Idoso de 80 Anos ou mais , Estudos Retrospectivos , Tomografia de Coerência Óptica/métodos , Angiofluoresceinografia/métodos , Acuidade Visual/fisiologia , Degeneração Macular/diagnóstico , Degeneração Macular/fisiopatologia , Verde de Indocianina/administração & dosagem , Epitélio Pigmentado da Retina/patologia , Epitélio Pigmentado da Retina/diagnóstico por imagem
12.
Retina ; 44(7): 1232-1241, 2024 07 01.
Artigo em Inglês | MEDLINE | ID: mdl-38471039

RESUMO

PURPOSE: To evaluate the impact of optical coherence tomography phenotypes preceding atrophy related to age-related macular degeneration on the progression of atrophic lesions. METHODS: In this observational retrospective cohort study, a total of 70 eyes of 60 consecutive patients with intermediate age-related macular degeneration with a minimum follow-up of 24 months were included. The atrophy was quantified using fundus autofluorescence, also considering the directionality of atrophy as centrifugal and centripetal progression rates. The main outcome measures were geographic atrophy (GA) progression rate (mm 2 /year) and square root transformation of GA (mm 2 /year). RESULTS: The best-fit model for GA (odds ratio: 1.81, P < 0.001) and square root transformation of GA (odds ratio: 1.36, P < 0.001) areas revealed that the main baseline predictor was the presence of a retinal pigment epithelium-basal lamina-Bruch membrane splitting. Large drusen at baseline appeared protective for the GA area lesion expansion over time (odds ratio: 0.52, P < 0.001) when considered with other confounders. CONCLUSION: A thin retinal pigment epithelium-basal lamina-Bruch membrane splitting without evidence of neovascularization on optical coherence tomography angiography likely represents an optical coherence tomography signature for late basal laminar deposits. Identifying this phenotype can help identify individuals with a higher risk of rapid progression and atrophy expansion.


Assuntos
Progressão da Doença , Angiofluoresceinografia , Atrofia Geográfica , Fenótipo , Epitélio Pigmentado da Retina , Tomografia de Coerência Óptica , Humanos , Tomografia de Coerência Óptica/métodos , Atrofia Geográfica/diagnóstico , Estudos Retrospectivos , Masculino , Feminino , Idoso , Epitélio Pigmentado da Retina/patologia , Epitélio Pigmentado da Retina/diagnóstico por imagem , Angiofluoresceinografia/métodos , Idoso de 80 Anos ou mais , Seguimentos , Acuidade Visual , Fundo de Olho , Pessoa de Meia-Idade , Lâmina Basilar da Corioide/patologia , Lâmina Basilar da Corioide/diagnóstico por imagem
13.
Medicina (Kaunas) ; 60(6)2024 Jun 17.
Artigo em Inglês | MEDLINE | ID: mdl-38929607

RESUMO

Background and objectives: Age-related macular degeneration (AMD) is a complex and multifactorial condition that can lead to permanent vision loss once it progresses to the neovascular exudative stage. This review aims to summarize the use of deep learning in neovascular AMD. Materials and Methods: Pubmed search. Results: Deep learning has demonstrated effectiveness in analyzing structural OCT images in patients with neovascular AMD. This review outlines the role of deep learning in identifying and measuring biomarkers linked to an elevated risk of transitioning to the neovascular form of AMD. Additionally, deep learning techniques can quantify critical OCT features associated with neovascular AMD, which have prognostic implications for these patients. Incorporating deep learning into the assessment of neovascular AMD eyes holds promise for enhancing clinical management strategies for affected individuals. Conclusion: Several studies have demonstrated effectiveness of deep learning in assessing neovascular AMD patients and this has a promising role in the assessment of these patients.


Assuntos
Aprendizado Profundo , Degeneração Macular , Tomografia de Coerência Óptica , Humanos , Tomografia de Coerência Óptica/métodos
14.
Graefes Arch Clin Exp Ophthalmol ; 261(5): 1289-1297, 2023 May.
Artigo em Inglês | MEDLINE | ID: mdl-36456861

RESUMO

PURPOSE: To evaluate differences in acquisition time, peripheral extension, and chromaticity between 3 different commercialized ultra-wide-field (UWF) fundus cameras. METHODS: Patients were prospectively enrolled from 07/2021 to 11/2021. Patients underwent fundus photography with the following scanning protocols: (1) single shot with Silverstone (Optos, California), two-shot montage with Clarus 500 (Carl Zeiss, Dublin, CA), and three-shot montage with iCare EIDON FA with UWF module (CenterVue Spa, a company of iCare Finland Oy; Vantaa, Finland). Acquisition time was calculated as the interval between the beginning and the end of the acquisition. Peripheral extension was quantified as the average ratio between the total retinal pixel area and the optic nerve head (ONH) pixel area. The average chromaticity of all pixels in the red-green-blue (RGB) space was calculated. RESULTS: Twenty-three eyes of 13 prospectively enrolled healthy controls were included in the study. Optos Silverstone had a higher total retina area/ONH area ratio (509.1 [480.9;559.3]) compared to Zeiss Clarus (442.0 [431.9;510.5], p = 0.02) and iCare EIDON (369.7 [345.3;387.8], p < 0.0001). Silverstone demonstrated the shortest acquisition time (median [interquartile range]: 32 [20;58.5] s) compared to Zeiss Clarus (42 [28.5;53.5] s, p = 0.6733) and iCare EIDON (72 [68.5;78] s, p = 0.0003). iCare EIDON demonstrated the lowest variability of acquisition time (9.5 s), compared to Zeiss Clarus (25 s) and Optos Silverstone (38.5 s). A statistically significant difference was found in the RGB distribution between each of the 3 devices (p < 0.001). iCare EIDON demonstrated an average barycenter position (RGB = [0.412, 0.314, 0.275]) that represented the best color balance of the image. Zeiss Clarus had a noticeable red shift at the expense of the blue and green channels (RGB = [0.515, 0.294, 0.191]). Optos Silverstone showed an absence of the blue channel (RGB = [0.621, 0.372, 0.007]) which results in a distortion of the color of the image. CONCLUSION: Optos Silverstone and Zeiss Clarus required less time than iCare EIDON to acquire a comparable size image and captured larger areas of the retina than iCare EIDON. iCare EIDON provided more color-balanced retinal images with greater richness of color content than the other two devices.


Assuntos
Disco Óptico , Retina , Humanos , Angiofluoresceinografia/métodos , Técnicas de Diagnóstico Oftalmológico , Fotografação/métodos , Fundo de Olho
15.
Graefes Arch Clin Exp Ophthalmol ; 261(5): 1267-1273, 2023 May.
Artigo em Inglês | MEDLINE | ID: mdl-36441229

RESUMO

PURPOSE: To assess the diagnostic accuracy of individual and combined imaging modalities compared with multimodal imaging for the detection of choroidal neovascularization (CNV) in central serous chorioretinopathy (CSC). METHODS: We analyzed patients with CSC with and without CNV who had indocyanine green angiography (ICGA), structural optical coherence tomography (OCT), and OCT angiography (OCTA) obtained on the same day. The presence of CNV was determined using multimodal imaging by a senior retina specialist (i.e., diagnostic reference). Individual and combined (i.e., ICGA + structural OCT) imaging modalities were then graded by two expert readers for the presence of CNV. Sensitivity, specificity, positive (PPV), and negative (NPV) predictive values were computed for individual and combined imaging modalities relative to the diagnostic reference. RESULTS: CNV was detected in 17 eyes in 17 out of 33 CSC patients according to the reference standard. Using ICGA, the identification of CNV had a sensitivity of 66.7%, specificity of 66.7%, PPV of 70.6%, and NPV of 62.5%. Structural OCT had the following diagnostic accuracy values: 83.3% of sensitivity, 53.3% of specificity, 68.1% of PPV, and 72.7% of NPV. Using OCTA, CNV was graded to be present with a sensitivity of 77.8%, specificity of 86.7%, PPV of 87.5%, and NPV of 76.5%. The combination of ICGA and structural OCT granted the identification of CNV with a sensitivity of 83.3%, specificity of 86.7%, PPV of 88.2%, and NPV of 81.3%. CONCLUSIONS: OCTA has an elevated diagnostic accuracy in identifying CSC-associated CNV, though a combination of ICGA and structural OCT has a comparable diagnostic efficiency.


Assuntos
Coriorretinopatia Serosa Central , Neovascularização de Coroide , Humanos , Coriorretinopatia Serosa Central/diagnóstico , Angiofluoresceinografia/métodos , Tomografia de Coerência Óptica/métodos , Neovascularização de Coroide/diagnóstico , Retina , Verde de Indocianina/farmacologia , Estudos Retrospectivos
16.
Retina ; 43(4): 547-554, 2023 04 01.
Artigo em Inglês | MEDLINE | ID: mdl-36728896

RESUMO

PURPOSE: To compare the anatomical and functional outcome of small (<250 µ m) and medium (250-400 µ m) full-thickness macular holes (FTMHs) treated with internal limiting membrane (ILM) inverted flap (IF) or with the standard technique. METHODS: Retrospective longitudinal analysis of successfully operated eyes with small or intermediate FTMH. Outcome measures were best-corrected visual acuity (BCVA), microperimetric sensitivity (with fixation stability), and restoration of the external limiting membrane (ELM) and ellipsoid zone (EZ) at 6 months. RESULTS: Fifty small and 50 intermediate eyes with FTMH were included, half of each group (25) treated with the standard technique, half with IF. BCVA increased in every subgroup, similarly within the same stage regardless the technique. Small FTMH treated with IF disclosed inferior foveal sensitivity at 6 months (20.79 ± 0.48 dB) compared with the standard technique (21.51 ± 0.79 dB; P = 0.0035). At 1 month, inferior rates of ELM (24%) and EZ (24%) restoration were also found, compared with the standard technique (56% ELM P = 0.0420; 64% EZ P = 0.0095). At 6 months, ELM and EZ were similarly restored. CONCLUSION: The surgical repair of small FMTH with ILM IF seem to delay the foveal structural repair and to gain an inferior foveal sensitivity compared to the standard technique.


Assuntos
Perfurações Retinianas , Humanos , Perfurações Retinianas/cirurgia , Estudos Retrospectivos , Vitrectomia/métodos , Membrana Basal/cirurgia , Tomografia de Coerência Óptica/métodos , Acuidade Visual
17.
Retina ; 43(11): 1960-1970, 2023 11 01.
Artigo em Inglês | MEDLINE | ID: mdl-37657077

RESUMO

PURPOSE: To perform an unsupervised machine learning clustering of patients with punctate inner choroidopathy (PIC) and provide new insights into the significance of pachychoroid disease features in PIC eyes. METHODS: Retrospective multicenter study, including 102 eyes from 82 patients diagnosed with PIC. Demographics, clinical data, and multimodal imaging, including fundus photography, optical coherence tomography, and indocyanine green angiography, were collected. Clusters of eyes were identified, and multilevel logistic regression analysis was performed to compare between-group differences. RESULTS: Using 17 clinical features, two distinct clusters of patients with PIC were identified. Cluster 1 patients were characterized by older age, high myopia, myopic maculopathy features, thin choroids, multiple lesions, and a higher likelihood of developing patchy chorioretinal atrophy. Cluster 2 consisted of younger age, emmetropia or low myopia, thick choroids, choroidal vascular hyperpermeability on late-phase indocyanine green angiography, and high prevalence of focal choroidal excavation. These features exhibited significant differences ( P < 0.05) between the two clusters. CONCLUSION: While PIC typically affects young myopic female patients with thin choroids, a subset of patients with PIC exhibits features associated with pachychoroid disease. Considering the potential influence of choroidal venous insufficiency on PIC manifestations and secondary complications, we propose the term "punctate inner pachychoroidopathy" to characterize this distinct subtype of PIC.


Assuntos
Miopia , Síndrome dos Pontos Brancos , Feminino , Humanos , Corioide/patologia , Demografia , Angiofluoresceinografia/métodos , Verde de Indocianina , Inflamação , Miopia/patologia , Estudos Retrospectivos , Tomografia de Coerência Óptica/métodos , Síndrome dos Pontos Brancos/diagnóstico , Masculino
18.
Retina ; 43(9): 1563-1572, 2023 09 01.
Artigo em Inglês | MEDLINE | ID: mdl-37229754

RESUMO

PURPOSE: To assess relationships between demographics, clinical characteristics, and optical coherence tomography characteristics with persistence of metamorphopsia after resolution of subretinal fluid in eyes with chronic central serous chorioretinopathy. METHODS: One-hundred participants with "resolved" (absence of subretinal fluid) chronic central serous chorioretinopathy were retrospectively analyzed. Patients underwent a complete ophthalmologic evaluation, including assessment of the presence of metamorphopsia. At the study visit, optical coherence tomography scans were reviewed for qualitative and quantitative features. RESULTS: Sixty-six of 100 patients (66.0%) complained of metamorphopsia. Both the foveal and parafoveal ganglion cell complex thicknesses were thinner in central serous chorioretinopathy eyes with metamorphopsia (35.1 ± 10.6 µ m and 82.0 ± 18.1 µ m vs. 40.7 ± 11.8 µ m and 93.1 ± 13.5 µ m, P = 0.030 and P < 0.0001). In the foveal region, the outer plexiform layer and outer nuclear layer thicknesses were thinner in patients with metamorphopsia (24.6 ± 8.5 µ m and 63.1 ± 20.9 µ m vs. 29.1 ± 8.7 and 76.2 ± 18.2 µ m, P = 0.016 and P = 0.005). The ellipsoid zone band was more frequently discontinued in eyes with metamorphopsia (56.1% vs. 35.3%, P = 0.039). Multivariate stepwise linear regression analysis demonstrated that the strongest associations with the presence of metamorphopsia were with parafoveal ganglion cell complex thickness ( P = 0.004), foveal outer nuclear layer thickness ( P = 0.010), and number of previous recurrences of subretinal fluid accumulation ( P = 0.017). The time interval from the last subretinal fluid resolution was not associated with the presence of metamorphopsia. CONCLUSION: In "resolved" central serous chorioretinopathy, clinical aspects (i.e., number of previous recurrences) and structural changes (i.e., ganglion cell complex and outer nuclear layer thinning) are associated with metamorphopsia after subretinal fluid resolution.


Assuntos
Coriorretinopatia Serosa Central , Humanos , Coriorretinopatia Serosa Central/complicações , Coriorretinopatia Serosa Central/diagnóstico , Estudos Retrospectivos , Prevalência , Acuidade Visual , Transtornos da Visão/diagnóstico , Tomografia de Coerência Óptica/métodos , Doença Crônica , Recidiva , Angiofluoresceinografia
19.
Retina ; 43(5): 755-761, 2023 05 01.
Artigo em Inglês | MEDLINE | ID: mdl-36728560

RESUMO

PURPOSE: To establish whether extensive macular atrophy with pseudodrusen (EMAP) can be distinguished from the diffuse-trickling phenotype of geographic atrophy (DTGA) secondary to age-related macular degeneration on the basis of its features on blue-light autofluorescence. METHODS: The authors reviewed our prospectively maintained database to enroll patients with a diagnosis of EMAP, DTGA, and non-DTGA with a minimum follow-up of 1 year. Atrophic areas and growth rates were measured on blue-light autofluorescence images, using the Heidelberg Region Finder tool. Circularity and roundness were chosen as atrophy shape descriptors, extracted using ImageJ, and compared between disease groups. RESULTS: A total of 28 EMAP, 27 DTGA, and 30 non-DTGA eyes were included in the analysis. The median follow-up time was around 3.5 years. Extensive macular atrophy with pseudodrusen was characterized by an irregular and elongated shape (low circularity and low roundness) and associated with a fast atrophy growth rate (3.6 mm 2 /year), compared with non-DTGA. However, these parameters were not significantly different between EMAP and DTGA. CONCLUSION: Our study found that EMAP and DTGA cannot be effectively differentiated on fundus autofluorescence. In both diseases, the macular atrophic area has a major vertical axis, fringed borders, and fast progression.


Assuntos
Atrofia Geográfica , Degeneração Macular , Humanos , Atrofia Geográfica/diagnóstico , Atrofia Geográfica/complicações , Progressão da Doença , Degeneração Macular/complicações , Degeneração Macular/diagnóstico , Fundo de Olho , Atrofia , Angiofluoresceinografia
20.
Retina ; 43(8): 1348-1355, 2023 08 01.
Artigo em Inglês | MEDLINE | ID: mdl-36996465

RESUMO

PURPOSE: To describe a sign that takes the form of a continuous hyperreflective band within the thickness of the ganglion cell layer (GCL), thus dubbed the "hyperreflective ganglion cell layer band" (HGB), which the authors detected in a fraction of patients affected by retinitis pigmentosa (RP). METHODS: Retrospective, cross-sectional, observational study. Optical coherence tomography (OCT) images of patients with RP examined between May 2015 and June 2021 were retrospectively reviewed for the presence of HGB, epiretinal membrane (ERM), macular hole, and cystoid macular edema (CME). The ellipsoid zone (EZ) width was also measured. A subgroup of patients underwent microperimetry in the central 2°, 4°, and 10°. RESULTS: One hundred and fifty-four eyes from 77 subjects were included in the study. The HGB was present in 39 (25.3%) eyes with RP. Mean best-corrected visual acuity (BCVA) was 0.39 ± 0.05 logMAR (approximately 20/50 Snellen equivalent) and 0.18 ± 0.03 logMAR (approximately 20/32 Snellen equivalent) in eyes with and without HGB, respectively ( P < 0.001). The two groups did not differ regarding EZ width; mean 2°, 4°, and 10° retinal sensitivity; and prevalence of CME, ERM, and macular hole. The multivariable analysis showed the presence of HGB to be a predictor of poorer BCVA ( P < 0.001). CONCLUSION: HGB is an OCT finding detectable in approximately a quarter of eyes with RP and is associated with a poorer visual function. In the discussion, the authors speculate about possible morphogenetic scenarios to explain this observation.


Assuntos
Membrana Epirretiniana , Edema Macular , Perfurações Retinianas , Retinose Pigmentar , Humanos , Estudos Retrospectivos , Perfurações Retinianas/complicações , Estudos Transversais , Retina , Retinose Pigmentar/diagnóstico , Edema Macular/diagnóstico , Membrana Epirretiniana/diagnóstico , Tomografia de Coerência Óptica/métodos
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