Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 61
Filtrar
1.
BMC Ophthalmol ; 24(1): 246, 2024 Jun 11.
Artigo em Inglês | MEDLINE | ID: mdl-38862935

RESUMO

BACKGROUND: To compare the ocular features of highly myopic eyes with posterior staphyloma of wide macular type according to its morphological complexity. METHODS: In this cross-sectional study, wide macular posterior staphyloma (WMPS) was classified into the primary (Curtin type I) and the compound (Curtin types VI to X) forms based on the configuration within the staphyloma. The grades of myopic maculopathy and the thicknesses of choroid and sclera were compared between the primary and compound forms of WMPS. RESULTS: A total of 154 eyes (103 patients) with primary WMPS and 65 eyes (49 patients) with compound WMPS were included. Eyes with compound WMPS had worse visual acuity (P = 0.001) and greater axial length (P < 0.001) than those with primary WMPS. Compared to primary WMPS, compound WMPS had a higher grade of myopic macular degeneration (P < 0.001) and a higher frequency of lamellar or full-thickness macular hole associated with myopic traction (21.5% vs. 10.4%; P = 0.028) and active or scarred myopic choroidal neovascularization (33.8% vs. 20.1%; P = 0.030). On swept-source optical coherence tomography, eyes with compound WMPS had significantly thinner choroid and sclera. CONCLUSIONS: The compound form of WMPS had more severe myopic macular changes and worse visual prognosis compared to the primary form of WMPS, and these were associated with more structural deformation in the posterior eyeball. Compound WMPS should be considered as an advanced form of staphyloma.


Assuntos
Miopia Degenerativa , Esclera , Tomografia de Coerência Óptica , Acuidade Visual , Humanos , Feminino , Masculino , Estudos Transversais , Miopia Degenerativa/complicações , Miopia Degenerativa/diagnóstico , Pessoa de Meia-Idade , Acuidade Visual/fisiologia , Tomografia de Coerência Óptica/métodos , Idoso , Esclera/patologia , Estudos Retrospectivos , Adulto , Corioide/patologia , Corioide/diagnóstico por imagem , Doenças da Esclera/diagnóstico , Macula Lutea/patologia , Macula Lutea/diagnóstico por imagem , Dilatação Patológica
2.
JAMA Ophthalmol ; 142(6): e236348, 2024 Jun 01.
Artigo em Inglês | MEDLINE | ID: mdl-38900196

RESUMO

This case report discusses a diagnosis of acute annular outer retinopathy in a 29-year-old female patient who presented with recent onset of visual field defect and photopsia.


Assuntos
Doenças Retinianas , Tomografia de Coerência Óptica , Humanos , Adulto , Doença Aguda , Doenças Retinianas/diagnóstico , Masculino , Angiofluoresceinografia , Acuidade Visual/fisiologia , Feminino
3.
Sci Rep ; 14(1): 4690, 2024 02 26.
Artigo em Inglês | MEDLINE | ID: mdl-38409191

RESUMO

This study investigates the impact of glycosylated hemoglobin (HbA1c) on the efficacy of intravitreal dexamethasone (DEX) implants in patients with diabetic macular edema (DME) over a 12-month period. We retrospectively reviewed 90 DME patients treated with DEX implants, categorizing them based on baseline HbA1c levels (≤ 7% and > 7%) and 12-month changes in HbA1c ("improved", "stable", "worsened"). At the 2-month mark, the mean central subfield thickness (CST) reduction in the HbA1c ≤ 7% group was - 147.22 ± 113.79 µm compared to -130.41 ± 124.50 µm in the > 7% group (p = 0.506). Notably, 12-month outcomes between these groups showed no significant difference. The "improved" HbA1c subgroup experienced a more pronounced CST reduction at 2 months (p = 0.042), with outcomes leveling off with other groups by 12 months. Conclusively, DEX implant outcomes in DME were not influenced by either baseline HbA1c levels or their changes over time. This suggests that local alterations in the inflammation milieu may have a potentially stronger impact on DME treatment outcomes, highlighting the importance of considering local factors in DME treatment.


Assuntos
Diabetes Mellitus , Retinopatia Diabética , Edema Macular , Humanos , Edema Macular/tratamento farmacológico , Glucocorticoides/uso terapêutico , Dexametasona/uso terapêutico , Hemoglobinas Glicadas , Inibidores da Angiogênese/uso terapêutico , Estudos Retrospectivos , Implantes de Medicamento/uso terapêutico , Resultado do Tratamento , Injeções Intravítreas , Diabetes Mellitus/induzido quimicamente
4.
Sci Rep ; 14(1): 4688, 2024 02 26.
Artigo em Inglês | MEDLINE | ID: mdl-38409198

RESUMO

As retinitis pigmentosa (RP) is chronic and progressive, the chronological sequence of microvascular changes is important for understanding its pathophysiology. We aimed to investigate retinal and choroidal microvascular changes according to the RP stages. The stages of RP were classified into three stages according to the integrity and width of the inner segment ellipsoid zone: early, ≥ 2500 µm; moderate, < 2500 µm; advanced, absence. Using optical coherence tomography angiography, quantitative microvascular parameters were analyzed. In total, 91 eyes from 49 patients were included. For the superficial capillary plexus (SCP) and deep capillary plexus (DCP), perfusion densities (PDs) in the early stage (SCP: 37.32 ± 8.11%; DCP: 21.19 ± 9.15%) were greater than those in moderate (SCP: 34.16 ± 6.65%, P = 0.011; DCP: 15.67 ± 8.85%, P = 0.031) and advanced stages (SCP: 33.71 ± 9.02%, P = 0.030; DCP: 12.83 ± 6.29%, P < 0.001). The choroidal vascularity index in the early stage (0.58 ± 0.03) was greater than those in the moderate (0.57 ± 0.02, P = 0.017) and advanced stage (0.56 ± 0.02, P = 0.033). The area and perimeter of foveal avascular zone (FAZ) in advanced stage (0.44 ± 0.26 mm2, 2.96 ± 0.86 mm, respectively) were larger than those in early (0.26 ± 0.11 mm2, P = 0.020; 2.19 ± 0.53 mm, P = 0.006, respectively) and moderate stage (0.28 ± 0.13 mm2, P = 0.043; 2.24 ± 0.67 mm, P = 0.013, respectively). During RP disease progression, retinal and choroidal microvascular vessel density decreases in the early stage, followed by FAZ enlargement in the advanced stage.


Assuntos
Vasos Retinianos , Retinose Pigmentar , Humanos , Vasos Retinianos/diagnóstico por imagem , Angiofluoresceinografia/métodos , Tomografia de Coerência Óptica/métodos , Acuidade Visual , Retinose Pigmentar/diagnóstico por imagem
5.
Retina ; 44(6): 1006-1014, 2024 Jun 01.
Artigo em Inglês | MEDLINE | ID: mdl-38346091

RESUMO

PURPOSE: To investigate the incidence and morphological biomarkers to predict the exudative conversion in eyes with type 1 nonexudative macular neovascularization using swept-source optical coherence tomography angiography. METHODS: Macular neovascularizations were detected using the retinal pigment epithelium-to-retinal pigment epithelium-fit slab of swept-source optical coherence tomography angiography scan. Depending on whether exudation developed within a year, the eyes were divided into two groups: active and silent. Qualitative and quantitative optical coherence tomography angiography parameters of the two groups were evaluated to discriminate the biomarkers associated with exudative conversion. RESULTS: Of the 40 eyes, nine developed exudation within 1 year (incidence rate 22.5%). The active group exhibited a significantly higher "anastomosis and loops" pattern, greater "vessel density," increased "junction density," fewer "number of end points," and lower "lacunarity" compared with the silent group. "Anastomosis and loops" and higher "vessel density" were correlated with the active group in multivariate analyses. A predictive model combining these biomarkers achieved 95% accuracy in predicting exudative conversion. CONCLUSION: At 12 months, the risk of exudation was 22.5%, and "anastomosis and loops" and "vessel density" were useful optical coherence tomography angiography biomarkers for predicting exudative conversion in eyes with type 1 nonexudative macular neovascularization. For eyes with a high risk of exudative conversion, more frequent follow-up is recommended.


Assuntos
Angiofluoresceinografia , Tomografia de Coerência Óptica , Humanos , Tomografia de Coerência Óptica/métodos , Feminino , Masculino , Angiofluoresceinografia/métodos , Idoso , Estudos Retrospectivos , Biomarcadores/metabolismo , Pessoa de Meia-Idade , Neovascularização Retiniana/diagnóstico , Neovascularização Retiniana/metabolismo , Acuidade Visual , Vasos Retinianos/diagnóstico por imagem , Vasos Retinianos/patologia , Fundo de Olho , Epitélio Pigmentado da Retina/patologia , Epitélio Pigmentado da Retina/diagnóstico por imagem , Seguimentos , Degeneração Macular Exsudativa/diagnóstico , Exsudatos e Transudatos , Idoso de 80 Anos ou mais
6.
Eye (Lond) ; 38(5): 988-993, 2024 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-37985727

RESUMO

OBJECTIVE: To investigate refractive outcomes and associated factors after sutureless flanged intrascleral fixation of intraocular lens (SFIF-IOL). METHODS: We retrospectively reviewed the medical records of consecutive patients who underwent SFIF-IOL at a single centre. The prediction error (PE; difference between the achieved and target refractive error) and absolute PE (APE) were analysed. Risk factors associated with refractive surprise, defined as APE > +0.5 D, were investigated using multivariable logistic regression analysis. RESULTS: Ninety-one eyes were included. At the final follow-up, the mean PE and APE were +0.07 ± 0.88 and +0.68 ± 0.56 D, respectively. Refractive surprise was observed in 44 eyes (54.3%) and was associated with a shorter axial length (AL) [odds ratio, 0.825; 95% confidence interval, 0.688-0.991; P = 0.039]. APE showed a significant correlation with AL at the final visit (⍴ = -0.269, P = 0.010), and eyes with AL ≥ 26 mm had significantly lower APE than did those with AL of 24-26 mm (P = 0.021) and AL < 24 mm (P = 0.0059). CONCLUSIONS: The refractive outcome after SFIF-IOL using manufacturer's A constant was favourable on average. Eyes with a longer AL were more likely to show a smaller deviation from the target refraction.


Assuntos
Hominidae , Lentes Intraoculares , Erros de Refração , Humanos , Animais , Implante de Lente Intraocular/efeitos adversos , Estudos Retrospectivos , Lentes Intraoculares/efeitos adversos , Refração Ocular , Biometria
7.
BMC Ophthalmol ; 23(1): 499, 2023 Dec 07.
Artigo em Inglês | MEDLINE | ID: mdl-38062449

RESUMO

BACKGROUND: To predict, using deep learning, the first recurrence in patients with neovascular age-related macular degeneration (nAMD) after three monthly loading injections of intravitreal anti-vascular endothelial growth factor (anti-VEGF). METHODS: Optical coherence tomography (OCT) images were obtained at baseline and after the loading phase. The first recurrence was defined as the initial appearance of a new retinal hemorrhage or intra/subretinal fluid accumulation after the initial resolution of exudative changes after three loading injections. Standard U-Net architecture was used to identify the three retinal fluid compartments, which include pigment epithelial detachment, subretinal fluid, and intraretinal fluid. To predict the first recurrence of nAMD, classification learning was conducted to determine whether the first recurrence occurred within three months after the loading phase. The recurrence classification architecture was built using ResNet50. The model with retinal regions of interest of the entire region and fluid region on OCT at baseline and after the loading phase is presented. RESULTS: A total of 1,444 eyes of 1,302 patients were included. The mean duration until the first recurrence after the loading phase was 8.20 ± 15.56 months. The recurrence classification system revealed that the model with the fluid region of OCT after the loading phase provided the highest classification performance, with an area under the receiver operating characteristic curve (AUC) of 0.725 ± 0.012. Heatmap analysis revealed that three pathological fluids, subsided choroidal neovascularization lesions, and hyperreflective foci were important areas for the first recurrence. CONCLUSIONS: The deep learning algorithm allowed for the prediction of the first recurrence for three months after the loading phase with adequate feasibility. An automated prediction system may assist in establishing patient-specific treatment plans and the provision of individualized medical care for patients with nAMD.


Assuntos
Aprendizado Profundo , Degeneração Macular , Degeneração Macular Exsudativa , Humanos , Inibidores da Angiogênese/uso terapêutico , Fator A de Crescimento do Endotélio Vascular , Retina/patologia , Líquido Sub-Retiniano , Tomografia de Coerência Óptica , Injeções Intravítreas , Degeneração Macular/tratamento farmacológico , Degeneração Macular Exsudativa/diagnóstico , Degeneração Macular Exsudativa/tratamento farmacológico , Ranibizumab/uso terapêutico
8.
Invest Ophthalmol Vis Sci ; 64(3): 28, 2023 03 01.
Artigo em Inglês | MEDLINE | ID: mdl-36939720

RESUMO

Purpose: Age-related macular degeneration (AMD) is the leading cause of visual impairment worldwide. In this study, we aimed to investigate the vitreous humor metabolite profiles of patients with intermediate AMD using untargeted metabolomics. Methods: We performed metabolomics using high-resolution liquid chromatography mass spectrometry on the vitreous humor of 31 patients with intermediate AMD and 30 controls who underwent vitrectomy for epiretinal membrane with or without cataract surgery. Univariate analyses after false discovery rate correction were performed to discriminate the metabolites and identify the significant metabolites of intermediate AMD. For biologic interpretation, enrichment and pathway analysis were conducted using MetaboAnalyst 5.0. Results: Of the 858 metabolites analyzed in the vitreous humor, 258 metabolites that distinguished patients with AMD from controls were identified (P values < 0.05). Ascorbic acid and uric acid levels increased in the AMD group (all P values < 0.05). The acyl carnitines, such as acetyl L-carnitine (1.37-fold), and fatty amides, such as anandamide (0.9-fold) and docosanamide (0.67-fold), were higher in patients with intermediate AMD. In contrast, nicotinamide (-0.55-fold), and succinic acid (-1.69-fold) were lower in patients with intermediate AMD. The metabolic pathway related oxidation of branched chain fatty acids and carnitine synthesis showed enrichment. Conclusions: Multiple metabolites related to fatty amides and acyl carnitine were found to be increased in the vitreous humor of patients with intermediate AMD, whereas succinic acid and nicotinamide were reduced, suggesting that altered metabolites related to fatty amides and acyl carnitines and energy metabolism may be implicated in the etiology of AMD.


Assuntos
Amidas , Carnitina , Degeneração Macular , Corpo Vítreo , Humanos , Niacinamida , Succinatos , Corpo Vítreo/metabolismo
9.
Korean J Ophthalmol ; 37(2): 95-104, 2023 04.
Artigo em Inglês | MEDLINE | ID: mdl-36758539

RESUMO

PURPOSE: To develop a deep learning model that can predict the axial lengths of eyes using ultra-widefield (UWF) fundus photography. METHODS: We retrospectively enrolled patients who visited the ophthalmology clinic at the Seoul National University Hospital between September 2018 and December 2021. Patients with axial length measurements and UWF images taken within 3 months of axial length measurement were included in the study. The dataset was divided into a development set and a test set at an 8:2 ratio while maintaining an equal distribution of axial lengths (stratified splitting with binning). We used transfer learning-based on EfficientNet B3 to develop the model. We evaluated the model's performance using mean absolute error (MAE), R-squared (R2), and 95% confidence intervals (CIs). We used vanilla gradient saliency maps to illustrate the regions predominantly used by convolutional neural network. RESULTS: In total, 8,657 UWF retinal fundus images from 3,829 patients (mean age, 63.98 ±15.25 years) were included in the study. The deep learning model predicted the axial lengths of the test dataset with MAE and R2 values of 0.744 mm (95% CI, 0.709-0.779 mm) and 0.815 (95% CI, 0.785-0.840), respectively. The model's accuracy was 73.7%, 95.9%, and 99.2% in prediction, with error margins of ±1.0, ±2.0, and ±3.0 mm, respectively. CONCLUSIONS: We developed a deep learning-based model for predicting the axial length from UWF images with good performance.


Assuntos
Comprimento Axial do Olho , Aprendizado Profundo , Fundo de Olho , Idoso , Humanos , Pessoa de Meia-Idade , Técnicas de Diagnóstico Oftalmológico , Fotografação , Estudos Retrospectivos , Comprimento Axial do Olho/diagnóstico por imagem , Biometria
10.
PLoS One ; 17(11): e0275611, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-36374913

RESUMO

PURPOSE: This study aimed to establish the efficacy, safety, and immunogenicity equivalence of the proposed biosimilar CKD-701 with the reference ranibizumab in patients with treatment-naïve neovascular age-related macular degeneration (nAMD). PATIENTS AND METHODS: A total of 312 participants with active subfoveal choroidal neovascularization were randomly assigned to either the CKD-701 (n = 156) or reference ranibizumab (n = 156) arms. The initial 3-month loading intraocular injections were followed by pro re nata (PRN) dosing for 9 months. The primary outcome was the proportion of patients with less than 15-letters of corrected visual acuity (BCVA) loss at 3 months visit (one month after last loading injection) compared to the baseline time point. The presence of retinal fluid, and changes in BCVA and central retinal thickness (CRT) were assessed as secondary efficacy outcomes. Immunogenicity and safety were evaluated in both treatment arms. RESULTS: In the CKD-701 arm, 143 (97.95%) patients lost <15 letters in the BCVA at 3 months compared to 143 (98.62%) in the reference arm (P = 0.67). The BCVA improved with a mean improvement of +7.0 (CKD-701) and +6.2 (ranibizumab) letters at 3 months (P = 0.43). The least-squares mean (SE) changes in CRT at 3 months from the baseline were -119.3 (12.0) µm and -124.5 (11.9) µm in the CKD-701 and ranibizumab groups, respectively (P = 0.74). The proportion of participants with subretinal or intraretinal fluid at 3, 6, and 12 months was similar between the study arms. The number (SE) of injections were 8.36 (3.13) in the CKD-701 and 8.26 (2.92) in ranibizumab (P = 0.62). The occurrence of adverse events and antidrug antibody in the study arms were also not statistically different. CONCLUSION: CKD-701 is a biosimilar to the reference ranibizumab in terms of efficacy, safety, and immunogenicity for the treatment of patients with nAMD. Moreover, improvement and maintenance of visual outcome were achieved through PRN regimen.


Assuntos
Medicamentos Biossimilares , Degeneração Macular , Insuficiência Renal Crônica , Degeneração Macular Exsudativa , Humanos , Ranibizumab/efeitos adversos , Medicamentos Biossimilares/efeitos adversos , Inibidores da Angiogênese/uso terapêutico , Injeções Intravítreas , Acuidade Visual , Tomografia de Coerência Óptica , Degeneração Macular/tratamento farmacológico , Degeneração Macular/induzido quimicamente , Insuficiência Renal Crônica/tratamento farmacológico , Insuficiência Renal Crônica/induzido quimicamente , Resultado do Tratamento , Degeneração Macular Exsudativa/tratamento farmacológico
11.
Invest Ophthalmol Vis Sci ; 63(11): 13, 2022 10 03.
Artigo em Inglês | MEDLINE | ID: mdl-36255365

RESUMO

Purpose: To investigate the association of retinal sensitivity with microstructural features in optical coherence tomography (OCT) of high myopic eyes. Methods: This cross-sectional study included 78 eyes (78 patients). Microstructural features on spectral-domain OCT, such as the integrity of the retinal pigment epithelium (RPE), ellipsoid zone (EZ), and external limiting membrane (ELM) and outer retinoschisis, were evaluated at each retinal location corresponding to microperimetric testing points. Results: For all testing points, retinal sensitivity was significantly associated with the integrity of the RPE, EZ, and ELM (all P < 0.001) based on OCT but not with outer retinoschisis (P = 0.183). A higher category of myopic maculopathy according to the Meta-Analysis of Pathologic Myopia classification was associated with lower mean retinal sensitivity (P < 0.001). In eyes with patchy atrophy (PA), mean retinal sensitivity of testing points adjacent to the PA lesion (15.7 ± 6.8 dB) was greater than points within or at the PA border (2.6 ± 5.2 dB; P < 0.001) but lower than distant points (19.6 ± 4.3 dB; P < 0.001). Microstructural features in OCT were well correlated with the differences in retinal sensitivity according to myopic maculopathy severity and proximity to the PA lesion. Conclusions: In highly myopic eyes, retinal sensitivity on microperimetry was strongly associated with microstructural features in OCT. Both retinal sensitivity and microstructure were affected by the severity of myopic degeneration and proximity to the PA lesion.


Assuntos
Degeneração Macular , Miopia , Doenças Retinianas , Retinosquise , Humanos , Tomografia de Coerência Óptica/métodos , Estudos Transversais , Acuidade Visual , Miopia/complicações , Miopia/diagnóstico , Estudos Retrospectivos
12.
J Clin Med ; 11(17)2022 08 31.
Artigo em Inglês | MEDLINE | ID: mdl-36079067

RESUMO

This study aimed to investigate the association between retinal sensitivity and retinal microstructures in fundus autofluorescence (FAF) and optical coherence tomography (OCT) in patients with retinitis pigmentosa (RP) and hyperautofluorescent (hyperAF) rings. This cross-sectional study included 44 eyes from 26 consecutive patients with RP. The morphological geometry of the hyperAF ring, such as three distinct FAF regions, hyperAF ring area, and longest diameter of the hyperAF ring on FAF, and the retinal microstructure, such as total retinal thickness (TRT) and outer retinal thickness (ORT), on OCT, were evaluated. A strong correlation of mean retinal sensitivity with hyperAF ring area (R = 0.8013, p < 0.001) and longest diameter of the hyperAF ring (R = 0.9072, p < 0.001) was observed. Segmented linear regression (SLR) analysis revealed breakpoints of 12.83 mm2 and 5.21 mm, respectively. ORT (R = 0.6551, p < 0.001) was more strongly correlated with retinal sensitivity than TRT (R = 0.2732, p < 0.001). SLR analysis revealed a breakpoint between the ORT and retinal sensitivity of 145.12 µm. In patients with RP and hyperAF rings, retinal sensitivity was strongly associated with the morphological geometry of the hyperAF ring. ORT, rather than TRT, strongly correlated with retinal sensitivity.

13.
PLoS One ; 17(9): e0273613, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-36137056

RESUMO

PURPOSE: The study aimed to evaluate risk factors for macular atrophy (MA) associated with myopic choroidal neovascularization (mCNV) during long-term follow-up after intravitreal anti-vascular endothelial growth factor (VEGF) treatment in highly myopic eyes. METHODS: The medical records of patients who received intravitreal injection of anti-VEGF agents as mCNV treatment and were followed-up for more than 36 months were retrospectively reviewed. The risk factors for the development of mCNV-MA, which is the fovea-involving patchy atrophy lesion adjacent to mCNV, were investigated using the Cox proportional hazard model. RESULTS: A total of 82 eyes (74 patients) were included in the study. The mean age at anti-VEGF treatment was 56.3 ± 12.5 years (range, 26-77), and the mean follow-up period was 76.3 ± 33.5 months (range, 36-154). During follow-up, mCNV-MA developed in 27 eyes (32.9%), and its occurrence was estimated to be 24.5% at 3 years and 37.3% at 5 years after the first anti-VEGF treatment. Old age (hazard ratio [HR] = 1.054, 95% confidence interval [CI]: 1.018-1.091; P = 0.003) and greater CNV size at baseline (HR = 2.396, CI: 1.043-5.504; P = 0.040) were significant factors for mCNV-MA development. Eyes with a thinner subfoveal choroid were more likely to show faster enlargement of the mCNV-MA during follow-up. CONCLUSIONS: In mCNV eyes treated with intravitreal anti-VEGF agents, older age and greater mCNV size at baseline were risk factors for the development of MA during long-term follow-up, which was associated with a poor visual prognosis.


Assuntos
Neovascularização de Coroide , Miopia Degenerativa , Inibidores da Angiogênese/efeitos adversos , Atrofia/tratamento farmacológico , Bevacizumab/efeitos adversos , Neovascularização de Coroide/patologia , Angiofluoresceinografia/efeitos adversos , Humanos , Injeções Intravítreas , Miopia Degenerativa/complicações , Miopia Degenerativa/tratamento farmacológico , Ranibizumab/efeitos adversos , Estudos Retrospectivos , Fatores de Risco , Fator A de Crescimento do Endotélio Vascular/uso terapêutico , Fatores de Crescimento do Endotélio Vascular
14.
Retina ; 42(10): 1889-1896, 2022 10 01.
Artigo em Inglês | MEDLINE | ID: mdl-36129265

RESUMO

PURPOSE: We aimed to develop a deep learning model for detecting and localizing retinal breaks in ultrawidefield fundus (UWF) images. METHODS: We retrospectively enrolled treatment-naive patients diagnosed with retinal break or rhegmatogenous retinal detachment and who had UWF images. The YOLO v3 architecture backbone was used to develop the model, using transfer learning. The performance of the model was evaluated using per-image classification and per-object detection. RESULTS: Overall, 4,505 UWF images from 940 patients were used in the current study. Among them, 306 UWF images from 84 patients were included in the test set. In per-object detection, the average precision for the object detection model considering every retinal break was 0.840. With the best threshold, the overall precision, recall, and F1 score were 0.6800, 0.9189, and 0.7816, respectively. In the per-image classification, the model showed an area under the receiver operating characteristic curve of 0.957 within the test set. The overall accuracy, sensitivity, and specificity in the test data set were 0.9085, 0.8966, and 0.9158, respectively. CONCLUSION: The UWF image-based deep learning model evaluated in the current study performed well in diagnosing and locating retinal breaks.


Assuntos
Aprendizado Profundo , Oftalmopatias , Perfurações Retinianas , Fundo de Olho , Humanos , Fotografação/métodos , Perfurações Retinianas/diagnóstico , Estudos Retrospectivos , Sensibilidade e Especificidade
15.
BMC Ophthalmol ; 22(1): 244, 2022 Jun 03.
Artigo em Inglês | MEDLINE | ID: mdl-35659269

RESUMO

BACKGROUND: We present a case of retinal occlusive vasculitis following brolucizumab administration and the first report of optical coherence tomography angiography (OCTA) findings after treatment. CASE PRESENTATION: A 71-year-old man complained of vision loss in the left eye 6 weeks after brolucizumab injection. His visual acuity was counting fingers, and examination revealed 1 + anterior chamber cells with 2 + vitreous cells. Fundus examination demonstrated vitreous haze, retinal whitening, and vascular sheathing. Fluorescein angiography revealed filling defects in the retinal arteries and veins, and OCTA showed extensive capillary nonperfusion. Under the diagnosis of brolucizumab-associated intraocular inflammation (IOI) and retinal occlusive vasculitis, topical, sub-Tenon, and systemic corticosteroids were administered. After the treatment, visual acuity improved to 20/200, and OCTA revealed gradual improvement in capillary dropout; however, with the limited improvement of reperfusion in the perifoveal areas. CONCLUSIONS: Prompt evaluation and intensive corticosteroid treatments are required for brolucizumab-associated IOI. OCTA imaging provides detailed information on microvascular changes in the retinal vascular plexuses in brolucizumab-associated retinal occlusive vasculitis.


Assuntos
Vasculite Retiniana , Uveíte , Idoso , Anticorpos Monoclonais Humanizados/efeitos adversos , Angiofluoresceinografia/métodos , Humanos , Inflamação/diagnóstico , Masculino , Vasculite Retiniana/induzido quimicamente , Vasculite Retiniana/diagnóstico , Vasculite Retiniana/tratamento farmacológico , Tomografia de Coerência Óptica/métodos , Uveíte/diagnóstico
16.
Sci Rep ; 12(1): 3099, 2022 02 23.
Artigo em Inglês | MEDLINE | ID: mdl-35197535

RESUMO

This observational cohort study aimed to evaluate the progression pattern of diffuse chorioretinal atrophy (DCA) according to its severity. Highly myopic eyes with DCA were graded according to its extent in the 532-nm (green) and 633-nm (red) wavelengths images of the Optos ultra-widefield scanning laser ophthalmoscope at baseline: grade 1 and 2 were defined when increased reflectance at peripapillary region, not beyond the fovea, were observed in red laser image only and in both laser images, respectively; grade 3 and 4 were defined when increased reflectance beyond the fovea were observed in red laser image only and in both laser images, respectively. A total of 307 eyes (221 patients) were included, and progression of myopic maculopathy during follow-up of ≥ 3 years was evaluated. The mean visual acuity and subfoveal choroidal thickness (CT) differed among DCA grades (P = 0.015 and P < 0.001); a higher DCA grade had worse visual acuity and thinner choroid. During follow-up, development of patchy atrophy (PA) was observed in 3.2%, 5.5%, 12.8%, and 23.2% (P < 0.001), while changes in lacquer crack (LC) and/or development of myopic macular neovascularization were observed in 20.6%, 29.1%, 33.3%, and 15.8% (P = 0.061) of 63, 110, 39, and 95 eyes with DCA grade of 1, 2, 3, and 4 at baseline, respectively. New LC formation tended to occur in eyes with thicker CT at baseline compared to PA development and progression of pre-existing LC. In highly myopic eyes with DCA, progression pattern of myopic maculopathy is different according to its severity and CT at baseline. Grading based on separated wavelength images of ultra-widefield scanning laser ophthalmoscope is useful to evaluate the severity and prognosis of DCA in Asian patients with high myopia.


Assuntos
Corioide/patologia , Degeneração Macular/diagnóstico por imagem , Degeneração Macular/patologia , Miopia/diagnóstico por imagem , Miopia/patologia , Retina/patologia , Idoso , Idoso de 80 Anos ou mais , Atrofia , Progressão da Doença , Feminino , Seguimentos , Humanos , Degeneração Macular/etiologia , Degeneração Macular/fisiopatologia , Masculino , Pessoa de Meia-Idade , Miopia/complicações , Miopia/fisiopatologia , Oftalmoscópios , Gravidade do Paciente , Prognóstico , Acuidade Visual
17.
Retina ; 42(6): 1189-1198, 2022 06 01.
Artigo em Inglês | MEDLINE | ID: mdl-35067612

RESUMO

PURPOSE: To investigate the significance of systemic indicators, including neutrophil-to-lymphocyte ratio (NLR) and platelet-to-lymphocyte ratio (PLR), as long-term visual prognostic factors in patients with Behçet uveitis. METHODS: This study comprised 114 eyes from 114 patients diagnosed with Behçet uveitis. Ophthalmologic evaluations and biochemical measurements including NLR and PLR values were consecutively obtained at each visit. Patients were divided into good and poor visual outcome groups, based on the visual acuity of 0.5 logarithm of the minimum angle of resolution in the worse-seeing eyes at the last visit. Factors associated with poor visual outcomes were analyzed, and optimal cutoff values of NLR and PLR were also evaluated. RESULTS: Sixty-six eyes (57.9%) were included in the good visual outcome group. Multivariate regression analysis showed that younger age of onset (odds ratio = 0.939; P = 0.010), longer disease duration (odds ratio = 1.164; P < 0.001), higher maximum NLR (odds ratio = 1.215; P = 0.033), and higher initial PLR (odds ratio = 1.014; P = 0.039) were significantly associated with poor visual outcomes. The optimal cutoff value for patients with poor visual outcome was 5.608 for NLR and 128.078 for PLR. CONCLUSION: A higher maximum NLR and higher initial PLR, as well as a younger age of onset and longer disease duration, were significantly associated with poor visual outcomes. Systemic inflammatory factors might be important indicators of visual prognosis in Behçet uveitis.


Assuntos
Neutrófilos , Uveíte , Plaquetas , Humanos , Linfócitos , Prognóstico , Estudos Retrospectivos
18.
Graefes Arch Clin Exp Ophthalmol ; 260(7): 2121-2128, 2022 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-35029729

RESUMO

PURPOSE: To compare the surgical outcomes of epiretinal membranes (ERMs) associated with retinal break and idiopathic ERMs. METHODS: This retrospective study included patients with an idiopathic ERM or an ERM associated with retinal break, who were followed up for ≥ 6 months after ERM removal. The postoperative functional and anatomical outcomes were compared between the groups. RESULTS: A total of 160 and 38 eyes (198 patients) were in the idiopathic and retinal break groups, respectively. There was no significant difference in the baseline anatomical and functional parameters between the groups. At 6 months after surgery and at the final follow-up, best-corrected visual acuity, central foveal thickness, and ectopic inner foveal layer improved significantly in both groups, but there was no significant difference between the groups. In latter 49.0% of patients, tests for metamorphopsia and aniseikonia were performed. There was a significant improvement in the scores of metamorphopsia (0.40 ± 0.38 to 0.27 ± 0.28; p < 0.001) and aniseikonia (6.07 ± 4.46 to 4.11 ± 3.52; p < 0.001) in the idiopathic group at 6 months after surgery, but not in the retinal break group. The idiopathic group had significantly greater circularity of ERM extent compared to the retinal break group (p = 0.025). CONCLUSION: Visual and anatomical improvements after removal of ERMs associated with retinal break and idiopathic ERMs were comparable. However, metamorphopsia and aniseikonia improved only after removal of idiopathic ERMs.


Assuntos
Aniseiconia , Membrana Epirretiniana , Perfurações Retinianas , Aniseiconia/complicações , Membrana Epirretiniana/complicações , Membrana Epirretiniana/diagnóstico , Membrana Epirretiniana/cirurgia , Humanos , Perfurações Retinianas/cirurgia , Estudos Retrospectivos , Tomografia de Coerência Óptica , Resultado do Tratamento , Transtornos da Visão , Acuidade Visual , Vitrectomia
19.
Ocul Immunol Inflamm ; 30(6): 1347-1353, 2022 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-33793368

RESUMO

PURPOSE: To investigate the role of ultra-widefield fluorescein angiography (UWFA) for monitoring therapeutic response to adalimumab in patients with Behcet's uveitis. METHODS: Patients with Behcet's uveitis treated with adalimumab for ≥30 weeks were included. Intraocular inflammation, best-corrected visual acuity, systemic medications, and UWFA scores were evaluated. RESULTS: Thirty-eight eyes of 20 patients were included. Significant decreases in grading of anterior chamber cells and vitreous haze were observed at 6, 14, and 30 weeks after adalimumab administration (p < .001 for all). UWFA scores on vascular and capillary leakage were decreased at week 6 and further improved at weeks 14 and 30. Moreover, UWFA score further decreased at 14 and 30 weeks, even after manifest inflammation became quiescent at 6 weeks. (p = .004 and 0.001, respectively). CONCLUSION: UWFA scores significantly improved in Behcet's uveitis patients treated with adalimumab, and further improvement of UWFA scores was found in patients with a clinically quiescent inflammatory state.


Assuntos
Síndrome de Behçet , Uveíte , Humanos , Angiofluoresceinografia , Adalimumab/uso terapêutico , Uveíte/diagnóstico , Uveíte/tratamento farmacológico , Uveíte/etiologia , Síndrome de Behçet/diagnóstico , Síndrome de Behçet/tratamento farmacológico , Inflamação
20.
Acta Ophthalmol ; 100(4): e977-e985, 2022 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-34403209

RESUMO

PURPOSE: To evaluate the impact of posterior staphyloma identified using ultra-widefield fundus imaging on the long-term progression of myopic maculopathy in highly myopic patients. METHODS: In this observational cohort study, highly myopic patients who were followed up for at least 5 years using ultra-widefield fundus imaging were analysed for fundus abnormalities and the progression of myopic maculopathy based on the International Meta-analysis of Pathologic Myopia classification. RESULTS: This study included 390 eyes (210 patients) with the mean follow-up period of 69.2 ± 7.5 months (range, 60-88). Posterior staphyloma was identified in 198 eyes (50.8%) in the baseline ultra-widefield fundus images. The border of staphyloma was not identified within 50° view circle corresponding to conventional fundus photography in 42 eyes (21.2%) with staphyloma, most of that were wide macular type. Progression of myopic maculopathy during follow-up was observed in 202 eyes (51.8%), and eyes with staphyloma were more likely to show progression compared to those without (142/198 [71.7%] versus 60/192 [31.3%]; p < 0.001). In multivariable regression analysis, the presence of posterior staphyloma was an independent risk factor for the progression of myopic maculopathy (p = 0.005). One or more peripheral retinal lesions were observed in 302 eyes (77.4%) and 321 eyes (82.3%) in the baseline and final ultra-widefield fundus images, respectively. CONCLUSION: Posterior staphyloma was associated with the long-term progression of myopic maculopathy. With a wider field of view, ultra-widefield fundus imaging is useful for identifying the posterior staphyloma and monitoring the progression of myopic maculopathy in highly myopic patients.


Assuntos
Degeneração Macular , Miopia Degenerativa , Doenças Retinianas , Doenças da Esclera , Estudos de Coortes , Fundo de Olho , Humanos , Degeneração Macular/complicações , Miopia Degenerativa/complicações , Miopia Degenerativa/diagnóstico , Miopia Degenerativa/patologia , Doenças Retinianas/complicações , Doenças Retinianas/etiologia , Tomografia de Coerência Óptica/métodos , Acuidade Visual
SELEÇÃO DE REFERÊNCIAS
DETALHE DA PESQUISA