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1.
Sci Rep ; 14(1): 12023, 2024 05 26.
Article in English | MEDLINE | ID: mdl-38797771

ABSTRACT

To study the clinical characteristics of macula off rhegmatogenous retinal detachment (RRD) with peripheral causative breaks and concomitant macular hole (RRD+MH). This is a bi-center study. Consecutive eyes of macula off RRD with or without macular hole (MH) were collected. Eyes in these two groups were compared with best corrected visual acuity in logarithm of minimal angle of resolution (logMAR BCVA), the presence of choroidal detachment (CD), proliferative vitreoretinopathy (PVR) and the extent of RRD. In the group of RRD+MH, regression analysis was used to evaluate the correlation of clinical factors and final logMar BCVA. In addition, optical coherence tomography was performed both pre-and post-operatively if possible. There were 40 eyes in the RRD+MH group and 80 eyes in the control group. Eyes with RRD+MH had worse initial and final logMar BCVA (p < 0.001), higher incidence of CD (p < 0.001), PVR and extensive RRD at baseline (p < 0.001). Among the eyes with RRD+MH, final BCVA was correlated with initial BCVA (p < 0.001, CI 0.637 to 0.837), recurrent RRD (p = 0.004, CI - 0.661 to - 0.126), duration of RRD (p = 0.021, CI - 0.576 to - 0.048) and presence of PVR (p = 0.001, CI - 0.131 to - 0.035). The hole closure rate at final follow up is 87.5%.11 of the 17 eyes had preoperative optical coherence tomography (OCT) obtained had ellipsoid zone lining the bottom of MH. CD, PVR and extensive RRD were more commonly observed in RRD+MH. The morphology of MH may suggest the pathogenesis of MH in RRD+MH include mechanism different from that of idiopathic MH.


Subject(s)
Retinal Detachment , Retinal Perforations , Tomography, Optical Coherence , Visual Acuity , Humans , Tomography, Optical Coherence/methods , Retinal Perforations/diagnostic imaging , Retinal Perforations/pathology , Retinal Detachment/diagnostic imaging , Retinal Detachment/pathology , Female , Male , Middle Aged , Aged , Retrospective Studies
3.
Pregnancy Hypertens ; 36: 101117, 2024 Jun.
Article in English | MEDLINE | ID: mdl-38428345

ABSTRACT

OBJECTIVE: To evaluate the characteristics of serous retinal detachment on spectral-domain optical coherence tomography in preeclampsia. METHODS: In this retrospective case-series study, clinical characteristics of retinal damage were evaluated using spectral-domain optical coherence tomography (SD-OCT) imaging. RESULTS: Thirty affected eyes from 16 pregnant women with preeclampsia were included. The features of serous retinal detachment, observed using SD-OCT, consisted of lesions located in the macular or peripapillary region; the presence of intraretinal or subretinal fluid (intraretinal fluid, IRF; subretinal fluid, SRF); ellipsoid zone integrity (normal/abnormal); intraretinal hyper-reflective dots; and Elschnig spots (retinal pigment epithelium lesions). Of the 30 affected eyes, 25 (83.33%) had lesions located in the macular region, 19 (63.33%) outside the macula (in the peripapillary region), and 14 (46.67%) in both. SD-OCT showed IRF in 2 eyes (6.67%), SRF in 30 eyes (100.00%), and both in 2 eyes (6.67%). The ellipsoid zone was disrupted in 20 eyes (66.67%), intraretinal hyper-reflective dots were observed in 4 eyes (13.33%), and Elschnig spots were observed in 20 eyes (66.67%). CONCLUSION: Spectral-domain optical coherence tomography is a non-invasive, reliable imaging tool for the assessment of retinal pathologies in preeclampsia.


Subject(s)
Pre-Eclampsia , Retinal Detachment , Tomography, Optical Coherence , Humans , Female , Pre-Eclampsia/diagnostic imaging , Pregnancy , Retinal Detachment/diagnostic imaging , Retinal Detachment/etiology , Retrospective Studies , Adult , Subretinal Fluid/diagnostic imaging
4.
Sci Rep ; 13(1): 19513, 2023 11 09.
Article in English | MEDLINE | ID: mdl-37945766

ABSTRACT

To compare the choroidal neovascular features of individuals with pachychoroid neovasculopathy (PNV) and neovascular age-related macular degeneration (nAMD) with and without shallow irregular pigment epithelial detachment (SIPED). Using optical coherence tomography angiography, the choroidal neovascular complexes of 27 patients with PNV, 34 patients with nAMD and SIPED, and 15 patients with nAMD without SIPED were analyzed with FIJI and AngioTool software. PNV compared to nAMD with SIPED had a greater vessel percentage area (P = 0.034), junction density (P = 0.045), average vessel length (P < 0.001), and fractal dimension (P < 0.001). PNV, compared to nAMD without SIPED, had a greater total vessel length (P = 0.002), total number of junctions (P < 0.001), junction density (P = 0.034), and fractal dimension (P = 0.005). nAMD with SIPED, compared to nAMD without SIPED, had greater vessel area, total number of junctions, total vessel length, and average vessel length (all P values < 0.001). Patients with nAMD plus SIPED and individuals with nAMD without SIPED have similar fractal dimension values (P = 0.703). Biomarkers of choroidal neovascular complexity, such as fractal dimension, can be used to differentiate PNV from nAMD with or without SIPED.


Subject(s)
Choroidal Neovascularization , Macular Degeneration , Retinal Detachment , Wet Macular Degeneration , Humans , Macular Degeneration/diagnostic imaging , Macular Degeneration/drug therapy , Retinal Detachment/diagnostic imaging , Choroid/blood supply , Choroidal Neovascularization/diagnostic imaging , Choroidal Neovascularization/drug therapy , Angiography , Tomography, Optical Coherence/methods , Retrospective Studies , Fluorescein Angiography/methods , Angiogenesis Inhibitors/therapeutic use
6.
Med Eng Phys ; 120: 104048, 2023 10.
Article in English | MEDLINE | ID: mdl-37838406

ABSTRACT

Nowadays, automated disease diagnosis has become a vital role in the medical field due to the significant population expansion. An automated disease diagnostic approach assists clinicians in the diagnosis of disease by giving exact, consistent, and prompt results, along with minimizing the mortality rate. Retinal detachment has recently emerged as one of the most severe and acute ocular illnesses, spreading worldwide. Therefore, an automated and quickest diagnostic model should be implemented to diagnose retinal detachment at an early stage. This paper introduces a new hybrid approach of best basis stationary wavelet packet transform and modified VGG19-Bidirectional long short-term memory to detect retinal detachment using retinal fundus images automatically. In this paper, the best basis stationary wavelet packet transform is utilized for image analysis, modified VGG19-Bidirectional long short-term memory is employed as the deep feature extractors, and then obtained features are classified through the Adaptive boosting technique. The experimental outcomes demonstrate that our proposed method obtained 99.67% sensitivity, 95.95% specificity, 98.21% accuracy, 97.43% precision, 98.54% F1-score, and 0.9985 AUC. The model obtained the intended results on the presently accessible database, which may be enhanced further when additional RD images become accessible. The proposed approach aids ophthalmologists in identifying and easily treating RD patients.


Subject(s)
Retinal Detachment , Humans , Retinal Detachment/diagnostic imaging , Fundus Oculi , Wavelet Analysis , Image Processing, Computer-Assisted
7.
Transl Vis Sci Technol ; 12(10): 3, 2023 10 03.
Article in English | MEDLINE | ID: mdl-37792693

ABSTRACT

Purpose: Machine learning models based on radiomic feature extraction from clinical imaging data provide effective and interpretable means for clinical decision making. This pilot study evaluated whether radiomics features in baseline optical coherence tomography (OCT) images of eyes with pigment epithelial detachment (PED) associated with neovascular age-related macular degeneration (nAMD) can predict treatment response to as-needed anti-vascular endothelial growth factor (VEGF) therapy. Methods: Thirty-nine eyes of patients with PED undergoing anti-VEGF therapy were included. All eyes underwent a loading dose followed by as-needed therapy. OCT images at baseline, month 3, and month 6 were analyzed. Images were manually separated into non-responding, recurring, and responding eyes based on the presence or absence of subretinal fluid at month 6. PED radiomics features were then extracted from each image and images were classified as responding or recurring using a machine learning classifier applied to the radiomics features. Results: Linear discriminant analysis classification of baseline features as responsive versus recurring resulted in classification performance of 64.0% (95% confidence interval [CI] = 0.63-0.65), area under the curve (AUC = 0.78, 95% CI = 0.72-0.82), sensitivity 0.79 (95% CI = 0.63-0.87), and specificity 0.58 (95% CI = 0.50-0.67). Further analysis of features in recurring eyes identified a significant shift toward non-responding mean feature values over 6 months. Conclusions: Our results demonstrate the use of radiomics features as predictors for treatment response to as-needed anti-VEGF therapy. Our study demonstrates the potential for radiomics feature in clinical decision support for personalizing anti-VEGF therapy. Translational Relevance: The ability to use PED texture features to predict treatment response facilitates personalized clinical decision making.


Subject(s)
Macular Degeneration , Retinal Detachment , Humans , Ranibizumab/therapeutic use , Angiogenesis Inhibitors/therapeutic use , Vascular Endothelial Growth Factor A/therapeutic use , Pilot Projects , Retrospective Studies , Retinal Detachment/diagnostic imaging , Retinal Detachment/drug therapy , Retinal Detachment/complications , Macular Degeneration/diagnostic imaging , Macular Degeneration/drug therapy
8.
Photodiagnosis Photodyn Ther ; 44: 103763, 2023 Dec.
Article in English | MEDLINE | ID: mdl-37643664

ABSTRACT

PURPOSE: To assess the changes of hyperreflective foci (HRF) in rhegmatogenous retinal detachment (RRD) patients after successful reattachment surgery. METHODS: Twenty-nine macula-off RRD eyes with successful reattachment surgery were retrospectively analyzed. Optical coherence tomography (OCT) was used to image macular regions and measure HRF in outer retina and inner retina at 0.5, 1, 3, 6, 12 months after surgery. The relationships between HRF and photoreceptor layer status, visual outcomes were evaluated. RESULTS: After retinal reattachment, HRF mainly distributed at the location where external limiting membrane (ELM) or inner and outer segment (IS/OS) line was disrupted. The HRF numbers in outer and inner retina were greater in eyes with discontinuous IS/OS line than eyes with continuous IS/OS line (all p<0.05). In the outer retina,  HRF increased in the initial three months after retinal reattachment, and then decreased gradually after 3 months (p<0.05). The HRF number in the outer retina at postoperative 0.5 months was associated with favorable visual outcomes at 6 and 12 months (r=-0.487,  p =0.025; r=-0.626,  p=0.005, respectively), nevertheless, the HRF number at 3 months was correlated with poor visual results at 6 and 12 months (r=0.441,  p =0.017; r=0.477,  p=0.019, respectively). CONCLUSION: HRF mainly occurred near the site where ELM or IS/OS line was injured after retinal reattachment. In the outer retina, the number of HRF gradually increased in the first 3 months and then gradually decreased. The early appearance of HRF in the outer retina was associated with a good visual prognosis, while the late appearance may suggest a less favorable visual outcome.


Subject(s)
Photochemotherapy , Retinal Detachment , Humans , Retinal Detachment/diagnostic imaging , Retinal Detachment/surgery , Tomography, Optical Coherence/methods , Retrospective Studies , Photochemotherapy/methods , Photosensitizing Agents
9.
Comput Biol Med ; 165: 107319, 2023 10.
Article in English | MEDLINE | ID: mdl-37611427

ABSTRACT

As a leading cause of blindness worldwide, macular edema (ME) is mainly determined by sub-retinal fluid (SRF), intraretinal fluid (IRF), and pigment epithelial detachment (PED) accumulation, and therefore, the characterization of SRF, IRF, and PED, which is also known as ME segmentation, has become a crucial issue in ophthalmology. Due to the subjective and time-consuming nature of ME segmentation in retinal optical coherence tomography (OCT) images, automatic computer-aided systems are highly desired in clinical practice. This paper proposes a novel loss-balanced parallel decoding network, namely PadNet, for ME segmentation. Specifically, PadNet mainly consists of an encoder and three parallel decoder modules, which serve as segmentation, contour, and diffusion branches, and they are employed to extract the ME's characteristics, the contour area features, and to expand the ME area from the center to edge, respectively. A new loss-balanced joint-loss function with three components corresponding to each of the three parallel decoding branches is also devised for training. Experiments are conducted with three public datasets to verify the effectiveness of PadNet, and the performances of PadNet are compared with those of five state-of-the-art methods. Results show that PadNet improves ME segmentation accuracy by 8.1%, 11.1%, 0.6%, 1.4% and 8.3%, as compared with UNet, sASPP, MsTGANet, YNet, RetiFluidNet, respectively, which convincingly demonstrates that the proposed PadNet is robust and effective in ME segmentation in different cases.


Subject(s)
Macular Edema , Retinal Detachment , Humans , Tomography, Optical Coherence/methods , Retina/diagnostic imaging , Macular Edema/diagnostic imaging , Retinal Detachment/diagnostic imaging
10.
Stud Health Technol Inform ; 305: 636-639, 2023 Jun 29.
Article in English | MEDLINE | ID: mdl-37387112

ABSTRACT

The current state of machine learning (ML) and deep learning (DL) algorithms used to detect, classify and predict the onset of retinal detachment (RD) were examined in this scoping review. This severe eye condition can cause vision loss if left untreated. By analyzing the medical imaging modalities such as fundus photography, AI could help to detect peripheral detachment at an earlier stage. We have searched five databases: PubMed, Google Scholar, ScienceDirect, Scopus, and IEEE. Two reviewers independently carried out the selection of the studies and their data extractions. 32 studies fulfilled our eligibility criteria from the 666 references collected. In particular, based on the performance metrics employed in these studies, this scoping review provides a general overview of emerging trends and practices concerning using ML and DL algorithms for detecting, classifying, and predicting RD.


Subject(s)
Retinal Detachment , Humans , Algorithms , Benchmarking , Eligibility Determination , Machine Learning , Retinal Detachment/diagnostic imaging
11.
West J Emerg Med ; 24(3): 622-628, 2023 May 05.
Article in English | MEDLINE | ID: mdl-37278794

ABSTRACT

INTRODUCTION: Point-of-care ultrasound (POCUS) plays a pivotal role in evaluating ocular complaints in the emergency department (ED). The rapid and non-invasive nature of ocular POCUS makes it a safe and informative imaging modality. Previous studies have investigated using ocular POCUS to diagnose posterior vitreous detachment (PVD), vitreous hemorrhage (VH), and retinal detachment (RD); however, there are few studies that assess image optimization techniques and how they impact the overall accuracy of ocular POCUS. METHODS: We performed a retrospective review of ED patients who received ocular POCUS examinations and ophthalmology consultations as part of their evaluation for eye complaints at our urban, Level I trauma center ED from November 2017-January 2021. Of 706 exams, 383 qualified for the study. In this study we primarily investigated how stratified gain levels impact the accuracy of ocular POCUS for detection of any posterior chamber pathology and, secondarily, whether stratified gain levels impact the accuracy of detecting RD, VH, and PVD specifically. RESULTS: The images were found to have an overall sensitivity of 81% (76-86%), specificity of 82% (76-88%), positive predictive value (PPV) of 86% (81-91%), and negative predictive value (NPV) of 77% (70-83%). Images acquired with a gain of (25, 50] had a sensitivity of 71% (61-80%), specificity of 95% (85-99%), PPV of 96% (88-99%), and NPV of 68% (56-78%). Images acquired with a gain of (50, 75] had a sensitivity of 85% (73-93%), specificity of 85% (72-93%), PPV of 86% (75-94%), and NPV of 83% (70-92%). Images acquired with a high gain (75, 100] had a sensitivity of 91% (82-97%), specificity of 67% (53-79%), PPV of 78% (68-86%), and NPV of 86% (72-95%). CONCLUSION: In the ED setting, high (75, 100] gain on ocular POCUS scanning has a higher degree of sensitivity for detecting any posterior chamber abnormality, as compared to low (25, 50] gain levels. Thus, incorporating the use of high gain for ocular POCUS exams produces a more effective tool for ocular pathologies in acute care settings and may be particularly valuable in resource-limited settings.


Subject(s)
Retinal Detachment , Vitreous Detachment , Humans , Point-of-Care Systems , Sensitivity and Specificity , Ultrasonography/methods , Eye/diagnostic imaging , Retinal Detachment/diagnostic imaging , Emergency Service, Hospital
12.
Sci Rep ; 13(1): 7184, 2023 05 03.
Article in English | MEDLINE | ID: mdl-37137948

ABSTRACT

The purpose of this study is to evaluate choroidal hyperreflective foci (HRF) changes in central serous chorioretinopathy (CSC) on en-face optical coherence tomography (OCT). Retrospective analysis of 42 patients with unilateral CSC (84 eyes, including fellow eyes for controls) and 42 age- and sex-matched controls. With 4.5 × 4.5 mm macular scans, structural en-face OCT choriocapillaris (CC) slabs were used to calculate the density and number of HRF in acute CSC eyes with serous retinal detachment (SRD), resolved CSC eyes without SRD, unaffected fellow eyes, control eyes, and 1-year follow-up eyes. Based on the 2-disc diameter (3000 µm), the en-face OCT scan was divided into foveal and perifoveal lesion and analyzed to consider the impact of SRF in HRF measurement. Regression analyses were performed on the several factors with HRF number and density in the acute and resolved CSC eyes. The perifoveal density and number of CC HRF was significantly lower in the resolved CSC eyes when compared to the acute CSC eyes (P = 0.002, both), fellow eyes (P = 0.042/density, 0.028/number), and controls (P = 0.021/density, P = 0.003/number). There was no significant difference between the acute CSC eyes, fellow eyes, controls, and 1-year follow-up eyes. As subfoveal choroidal thickness decreased and choroidal vascularity (CVI) increased, the perifoveal density and number of HRF was measured higher with a significant correlation in univariate regression analysis of the acute and resolved CSC eyes (all, P < 0.05). The authors hypothesized that stromal edema induced by choroidal congestion and hyperpermeability has the greatest influence on HRF measurement, possibly affected by inflammatory cells and materials extravasation.


Subject(s)
Central Serous Chorioretinopathy , Retinal Detachment , Humans , Central Serous Chorioretinopathy/diagnostic imaging , Central Serous Chorioretinopathy/pathology , Tomography, Optical Coherence/methods , Retrospective Studies , Fluorescein Angiography/methods , Choroid/diagnostic imaging , Choroid/pathology , Retinal Detachment/diagnostic imaging , Retinal Detachment/pathology
13.
Phys Med Biol ; 68(11)2023 05 30.
Article in English | MEDLINE | ID: mdl-37137316

ABSTRACT

Retinal detachment (RD) and retinoschisis (RS) are the main complications leading to vision loss in high myopia. Accurate segmentation of RD and RS, including its subcategories (outer, middle, and inner retinoschisis) in optical coherence tomography images is of great clinical significance in the diagnosis and management of high myopia. For this multi-class segmentation task, we propose a novel framework named complementary multi-class segmentation networks. Based on domain knowledge, a three-class segmentation path (TSP) and a five-class segmentation path (FSP) are designed, and their outputs are integrated through additional decision fusion layers to achieve improved segmentation in a complementary manner. In TSP, a cross-fusion global feature module is adopted to achieve global receptive field. In FSP, a novel three-dimensional contextual information perception module is proposed to capture long-range contexts, and a classification branch is designed to provide useful features for segmentation. A new category loss is also proposed in FSP to help better identify the lesion categories. Experiment results show that the proposed method achieves superior performance for joint segmentation of RD and the three subcategories of RS, with an average Dice coefficient of 84.83%.


Subject(s)
Myopia , Retinal Detachment , Retinoschisis , Humans , Retinoschisis/diagnostic imaging , Retinoschisis/complications , Retinal Detachment/diagnostic imaging , Retinal Detachment/complications , Retina/diagnostic imaging , Tomography, Optical Coherence/methods , Myopia/complications , Myopia/pathology , Image Processing, Computer-Assisted
15.
Eye (Lond) ; 37(14): 3020-3025, 2023 10.
Article in English | MEDLINE | ID: mdl-36879162

ABSTRACT

PURPOSE: To compare 10-MHz and 15-MHz B-scan probes regarding the detection and localization of retinal detachment (RD) in silicone-oil-filled eyes. METHODS: This cross-sectional observational study included 100 eyes (98 patients) -having media opacity precluding fundus examination- scheduled for silicone-oil removal. Patients were examined in the sitting-position using both frequencies one week preoperatively. Longitudinal and transverse scans were taken in primary-gaze, inferior, inferonasal, and inferotemporal positions to detect the presence/absence and extent of RD. Patients were sub-grouped according to axial lengths (AXLs), state of silicone emulsification, and globe filling. Agreement between sonographic and intraoperative observations was compared. RESULTS: No statistically significant differences were found between 15-MHz and intra-operative findings regarding RD detection (P = 0.752) and accurate localization of inferior, inferonasal, and inferotemporal RD (P = 0.279, 0.606, and 0.599). There were statistically significant differences between 10-MHz and intra-operative findings regarding RD detection and localization (P < 0.001). The 15-MHz probe was superior to 10-MHz probe regarding the accuracy of RD detection and localization (94% and 47%, respectively). The accuracy of 15-MHz probe was 88%, 83%, and 85% in detecting and localizing inferior, inferonasal, and inferotemporal RD compared to 45%, 60%, and 62% with 10-MHz probe. The 15-MHz probe showed better sensitivity while 10-MHz probe showed better accuracy in eyes with short AXLs. The 10-MHz probe showed better sensitivity in patients with sonographic emulsification while15-MHz probe had better sensitivity in detecting vitreoretinal-interface disorders. CONCLUSION: The 15-MHz B-scan probe is more accurate in detecting and localizing recurrent RD in silicone-oil-filled globes with higher sensitivity in detecting vitreoretinal-interface disorders.


Subject(s)
Retinal Detachment , Silicone Oils , Humans , Cross-Sectional Studies , Retina , Retinal Detachment/diagnostic imaging , Retinal Detachment/surgery , Scleral Buckling , Vitrectomy
16.
Sci Rep ; 13(1): 68, 2023 01 02.
Article in English | MEDLINE | ID: mdl-36593323

ABSTRACT

We provide an automated analysis of the pigment epithelial detachments (PEDs) in neovascular age-related macular degeneration (nAMD) and estimate areas of serous, neovascular, and fibrous tissues within PEDs. A retrospective analysis of high-definition spectral-domain OCT B-scans from 43 eyes of 37 patients with nAMD with presence of fibrovascular PED was done. PEDs were manually segmented and then filtered using 2D kernels to classify pixels within the PED as serous, neovascular, or fibrous. A set of PED composition indices were calculated on a per-image basis using relative PED area of serous (PEDCI-S), neovascular (PEDCI-N), and fibrous (PEDCI-F) tissue. Accuracy of segmentation and classification within the PED were graded in masked fashion. Mean overall intra-observer repeatability and inter-observer reproducibility were 0.86 ± 0.07 and 0.86 ± 0.03 respectively using intraclass correlations. The mean graded scores were 96.99 ± 8.18, 92.12 ± 7.97, 91.48 ± 8.93, and 92.29 ± 8.97 for segmentation, serous, neovascular, and fibrous respectively. Mean (range) PEDCI-S, PEDCI-N, and PEDCI-F were 0.253 (0-0.952), 0.554 (0-1), and 0.193 (0-0.693). A kernel-based image processing approach demonstrates potential for approximating PED composition. Evaluating follow up changes during nAMD treatment with respect to PEDCI would be useful for further clinical applications.


Subject(s)
Macular Degeneration , Retinal Detachment , Wet Macular Degeneration , Humans , Angiogenesis Inhibitors/therapeutic use , Retrospective Studies , Reproducibility of Results , Retinal Pigment Epithelium/diagnostic imaging , Tomography, Optical Coherence/methods , Visual Acuity , Intravitreal Injections , Retinal Detachment/diagnostic imaging , Retinal Detachment/drug therapy , Macular Degeneration/diagnostic imaging , Macular Degeneration/drug therapy , Wet Macular Degeneration/drug therapy
17.
Arch. Soc. Esp. Oftalmol ; 98(1): 58-61, ene. 2023. ilus
Article in Spanish | IBECS | ID: ibc-214333

ABSTRACT

Se describen 4 casos clínicos de pacientes con desprendimiento de retina regmatógeno (DRR) asociado a elevación de presión intraocular (PIO) en el momento del diagnóstico del DRR. Todos los pacientes eran hombres que acudieron a urgencias por miodesopsias, presentaban inflamación leve a moderada en cámara anterior y elevación de la presión intraocular mayor de 30mmHg. En todos ellos se detectó la presencia de DRR. Esto demuestra que los desprendimientos de retina no siempre presentan la PIO baja, y es compatible con valores de PIO alta. En esos casos de enfermedad retiniana y PIO elevada, se debe examinar minuciosamente la cámara anterior y el fondo de ojo para que no pase desapercibido un desprendimiento de retina que requiere tratamiento inmediato. Esta asociación de una PIO elevada y un DRR se denomina síndrome de Schwartz-Matsuo (AU)


Four clinical cases of patients with rhegmatogenous retinal detachment (RRD) associated with elevated intraocular pressure (IOP) are described. All the patients were men who came to the emergency service with floaters, all presented mild to moderate inflammation in the anterior chamber and increased intraocular pressure greater than 30mmHg. All were diagnosed of RRD. This demonstrates that a RRD does not always present low IOP. In these cases of clinical retinal pathology and high IOP, we must carefully examine the anterior chamber and the fundus of the eye so that an associated retinal detachment does not remain unnoticed, and can be treated immediately. This association of elevated IOP and RRD is called as Schwartz-Matsuo Syndrome (AU)


Subject(s)
Humans , Male , Middle Aged , Retinal Detachment/diagnostic imaging , Retinal Detachment/complications , Intraocular Pressure
18.
Eye (Lond) ; 37(6): 1191-1201, 2023 04.
Article in English | MEDLINE | ID: mdl-35581370

ABSTRACT

BACKGROUND: Pigment epithelial detachments (PEDs) occur in association with various chorioretinal diseases. With respect to the broad clinical spectrum of PEDs we describe fundus autofluorescence (FAF) characteristics of PEDs. METHODS: Ninety-three eyes of 66 patients (mean age 71.9 ± 11.1) with uni- or bilateral PED ( ≥ 350 µm) were included in a retrospective cross-sectional study. PEDs were secondary to age-related macular degeneration (n = 79), central serous chorioretinopathy (n = 7), polypoidal choroidal vasculopathy (n = 2), pattern dystrophy (n = 3) or idiopathic PED (n = 2). FAF images were recorded using confocal scanning laser ophthalmoscopy (488 nm excitation wavelength, detection of emission >500 nm). Diagnosis of PED was confirmed using spectral-domain optical coherence tomography. A qualitative FAF grading system was established, and grading was performed by two independent readers. RESULTS: PEDs showed highly variable characteristics on FAF imaging. FAF within the area of PED was found to be irregular/granular (n = 59, 63.4%), increased (n = 28, 30.1%), decreased (n = 3, 3.2 %), or normal (n = 3, 3.2%). Accompanying FAF changes included condensation of macular pigment (n = 67, 72.0%), focally increased FAF at the PED apex (n = 14, 15.1%) or elsewhere (n = 52, 55.9%), focally decreased FAF (n = 23, 24.7%), a cartwheel-like pattern (n = 10, 10.8%), a doughnut sign (n = 6, 6.5%), and a halo of decreased FAF encircling the PED (completely n = 20, 21.5% or incompletely n = 20, 21.5%). CONCLUSIONS: PEDs show a variety of abnormal patterns on FAF imaging. These changes in FAF signals may be secondary to morphological and metabolic alterations within corresponding retinal layers and do not necessarily correspond with the underlying PED subtype or a specific pathology.


Subject(s)
Central Serous Chorioretinopathy , Retinal Detachment , Humans , Middle Aged , Aged , Aged, 80 and over , Retrospective Studies , Cross-Sectional Studies , Retinal Pigment Epithelium/pathology , Retinal Detachment/diagnostic imaging , Retinal Detachment/pathology , Ophthalmoscopy/methods , Central Serous Chorioretinopathy/diagnosis , Central Serous Chorioretinopathy/pathology , Tomography, Optical Coherence/methods , Optical Imaging , Fluorescein Angiography/methods
19.
Sci Rep ; 12(1): 15198, 2022 09 07.
Article in English | MEDLINE | ID: mdl-36071082

ABSTRACT

To describe a novel optical coherence tomography (OCT) signature resembling sub-retinal pigment epithelium (RPE) tubules (SRT) in non-neovascular age-related macular degeneration (AMD). Patients suffering from non-neovascular AMD with complete medical records and multimodal imaging were retrospectively revised in three different tertiary care centers. Multimodal imaging included color fundus photograph, spectral-domain OCT (Spectralis, Heidelberg Engineering, Germany), fundus autofluorescence, OCT angiography (RTVue XR Avanti, Optovue, Inc., Fremont, CA). A total of 7 eyes of 7 patients with drusenoid pigment epithelium detachment (PED) were consecutively analyzed. The sub-RPE tubules appeared as ovoidal structures with a hyperreflective contour and hyporeflective interior appreciable in the sub-RPE-basal lamina (BL) space on OCT B-scan. The anatomical location of the sub-RPE formations was lying above the Bruch's membrane in 5/7 cases (71.4%) or floating in the sub-RPE-BL space in 2/7 cases (28.6%). En-face OCTA revealed a curvilinear tubulation-like structure corresponding to SRT without flow signal. Sub-RPE tubules represent a newly identified OCT signature observed in eyes with drusenoid PED. The presumed origin may include a variant of calcified structure or alternatively activated RPE cells with some residual BL or basal laminar deposits attracted to BrM for craving oxygen.


Subject(s)
Macular Degeneration , Retinal Detachment , Fluorescein Angiography , Humans , Macular Degeneration/diagnostic imaging , Retinal Detachment/diagnostic imaging , Retinal Pigment Epithelium/diagnostic imaging , Retrospective Studies , Tomography, Optical Coherence/methods
20.
Ophthalmologie ; 119(8): 789-797, 2022 Aug.
Article in German | MEDLINE | ID: mdl-35925346

ABSTRACT

The incidence of retinal folds following surgical repair of retinal detachment is underestimated. The extent of retinal folds is variable and can include the complete retina with all layers and an apposition of the photoreceptor outer segments or only partially affect the outer or inner retinal layers. While complete folds can be relatively easily detected by clinical examination, discrete partial folds are sometimes difficult to assess biomicroscopically. In these cases, high-resolution optical coherence tomography (OCT) plays an important role as a tool for differential diagnosis. If macular translocation occurs during the formation of folds, mostly in associated with inferior retinal folds, patients often complain of binocular double vision. A significant reduction of visual acuity and metamorphopsia occur in cases where the folding involves the fovea. In general, retinal folds tend to resolve spontaneously over a prolonged period of follow-up of several months; however, in cases of foveal involvement and corresponding symptoms, a surgical revision can be indicated, although the surgical procedure is not standardized.


Subject(s)
Retinal Detachment , Retinal Diseases , Humans , Retinal Detachment/diagnostic imaging , Retinal Diseases/diagnosis , Tomography, Optical Coherence/adverse effects , Visual Acuity , Vitrectomy/adverse effects
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