ABSTRACT
INTRODUCTION: Optical coherence tomography angiography (OCTA) research in diabetic macular edema (DME) has focused on the retinal microvasculature with little attention to the choroid. The goal of this study was to analyze the association between quantitative choroidal OCTA parameters and various forms of DME observed on optical coherence tomography. METHODS: We conducted a retrospective study of 61 eyes of 53 patients with DME. DME was classified as early or advanced, and as sponge-like diffuse retinal thickening (DRT), cystoid macular edema (CME) or serous retinal detachment (SRD). Quantitative OCTA parameters (vessel density [VD] in the superficial capillary plexus [SCP], middle capillary plexus [MCP], deep capillary plexus [DCP] and choriocapillaris [CC]) were recorded. RESULTS: The VD in the CC and SCP was significantly higher in patients with early DME compared to patients with advanced DME (P value<0.01). CC VD was lower in subjects with SRD compared to DRT and CME (P value<0.001). Moreover, it was lower in CME compared to DRT (P value<0.05). No statistical differences were found between VD in the MCP and DCP (P value>0.05). Furthermore, CC VD was lower in patients with increased retinal thickness, disruption of the ellipsoid zone (EZ) or external limiting membrane (ELM), and disorganization of the inner retinal layers (DRIL) (P value<0.05). CONCLUSION: CC ischemia plays an important role in the pathogenesis of DME. We demonstrated a decrease in CC VD in patients with severe DME, SRD, retinal thickening, EZ and/or ELM disruption and DRIL.
Subject(s)
Diabetes Mellitus , Diabetic Retinopathy , Macular Edema , Retinal Detachment , Humans , Macular Edema/diagnostic imaging , Macular Edema/etiology , Diabetic Retinopathy/complications , Diabetic Retinopathy/diagnosis , Diabetic Retinopathy/pathology , Retinal Vessels/pathology , Tomography, Optical Coherence/methods , Retrospective Studies , Fluorescein Angiography/methods , Microvessels/diagnostic imaging , Retinal Detachment/pathology , Choroid/diagnostic imaging , Choroid/pathology , Diabetes Mellitus/pathologyABSTRACT
PURPOSE: To report three cases of aneurysmal type 2 neovascularization (AT2), a novel entity within the pachychoroid disease (PD) spectrum. METHODS: We conducted an observational retrospective study of three patients with subretinal polyps treated with intravitreal aflibercept. We reviewed clinical and imaging data of the three patients. Best corrected visual acuity (BCVA), central macular thickness (CMT), choroidal subfoveal thickness, choroidal thickness under the polyps and the presence of a dry macula were assessed at baseline and throughout the follow-up. RESULTS: All of the patients showed granular hypoautofluorescence on fundus autofluorescence. Indocyanine green angiography revealed prominent hyperfluorescent branching vascular networks ending in multiple aneurysmal dilatations. Optical coherence tomography (OCT) demonstrated that the aneurysmal lesions were localized in the subretinal space. Additionally, OCT showed retinal pigment epithelial microtears, the double-layer sign and pachyvessels. En face OCT-A perfectly defined prominent telangiectatic branching vascular networks in all the patients, but only revealed polyps in two out of the three patients. Cross-sectional OCT-A demonstrated polyps as patchy circular hypoflow signals in each case. After the intravitreal treatment, BCVA remained unimproved in all of the patients, despite decreased CMT and achievement of a dry macula, as a result of the development of subretinal fibrosis. CONCLUSION: In summary, we describe a new entity within the spectrum of PD, which we have termed AT2. This novel disease is characterized by the presence of aneurysmal dilatations in the subretinal space, along with the typical features of PD, such as choroidal vascular hyperpermeability, thickening of the choroid and pachyvessels.
Subject(s)
Choroidal Neovascularization , Macula Lutea , Polyps , Humans , Retrospective Studies , Cross-Sectional Studies , Choroid/pathology , Choroidal Neovascularization/diagnosis , Choroidal Neovascularization/drug therapy , Choroidal Neovascularization/pathology , Macula Lutea/pathology , Tomography, Optical Coherence/methods , Fluorescein Angiography/methods , Polyps/diagnosis , Intravitreal Injections , Observational Studies as TopicABSTRACT
Se presenta el caso de retinopatía autoinmune en un paciente con carcinoma microcítico de pulmón, no conocido hasta el momento, que se diagnosticó tras la exploración oftalmológica. La serología fue positiva para anticuerpos onconeuronales CV2/CRMP5. La retinopatía autoinmune es una entidad rara que puede pasarse por alto, y ser infradiagnosticada. Se produce por una reacción inmunomediada contra antígenos retinianos. La importancia de su diagnóstico precoz radica en que en muchos de los pacientes la sintomatología ocular aparece antes del diagnóstico del cáncer primario, por lo que su identificación y derivación precoz para estudio de extensión puede suponer el diagnóstico de una neoplasia primaria oculta hasta el momento. (AU)
We present a case of autoimmune retinopathy in a patient with unknown small cell lung cáncer (SCLC), which was diagnosed after ophthalmological examination. Serology was positive for CV2/CRMP5 onconeuronal antibodies. Autoimmune retinopathy is a rare entity that can be missed and underdiagnosed. It is produced by an immune-mediated reaction against retinal antigens. The importance of its early diagnosis lies in the fact that in many of the patients, ocular symptoms appear before the diagnosis of the primary cancer, so its early identification and referral for an extension study may lead to the diagnosis of a hidden primary neoplasm. (AU)
Subject(s)
Humans , Male , Aged , Retinal Diseases/immunology , Autoantibodies/immunology , Carcinoma, Small Cell/diagnosis , Carcinoma, Small Cell/immunology , Lung Neoplasms/diagnosis , Lung Neoplasms/immunology , Early Detection of Cancer , Fluorescein AngiographyABSTRACT
We present a case of autoimmune retinopathy in a patient with unknown small cell lung cáncer (SCLC), which was diagnosed after ophthalmological examination. Serology was positive for CV2/CRMP5 onconeuronal antibodies. Autoimmune retinopathy is a rare entity that can be missed and underdiagnosed. It is produced by an immune-mediated reaction against retinal antigens. The importance of its early diagnosis lies in the fact that in many of the patients, ocular symptoms appear before the diagnosis of the primary cancer, so its early identification and referral for an extension study may lead to the diagnosis of a hidden primary neoplasm.
Subject(s)
Fovea Centralis , Vascular Malformations , Fluorescein Angiography , Humans , Laser Coagulation , Lasers , RetinaABSTRACT
PURPOSE: To report the multimodal imaging in multiple evanescent white dot syndrome (MEWDS) during the acute and convalescent stages in order to better understand the focus of the inflammatory process. METHODS: Retrospective cohort study of 4 patients with MEWDS. Each patient underwent: enhanced depth imaging-optical coherence tomography (EDI-OCT), fundus autofluorescence (FAF), fluorescein angiography (FA), indocyanine green angiography (ICGA) and en-face OCT and OCT angiography (OCT-A). Choroidal subfoveal thickness (CST) was measured manually. All patients were studied in the acute stage and convalescent stage after disappearance of OCT abnormalities and resolution of visual symptoms. RESULTS: Four MEWDS patients with a mean age of 23.5years were studied (range: 16-33years). Two patients were women. Initial mean visual acuity (VA) was 80.25 ETDRS. Final mean VA was 84.25 ETDRS. OCT imaging showed disruption of the ellipsoid zone and a slightly elevated RPE layer with overlying hyperreflective material, all of which corresponded to hyperautofluorescent FAF lesions. FA revealed multiple hyperautofluorescent lesions, correlated with hypocyanescent spots on the late ICGA. OCT-A showed normal superficial and deep retinal capillary plexus as well as choriocapillaris. The disease was self-limited in all the cases, with a mean time of 9weeks to resolution (range: 4-16). CONCLUSION: The pathophysiology of MEWDS is still debated. We believe that there is still not enough evidence to implicate the outer retina as the primary cause. For now, we suggest that this transient disease is the consequence of choriocapillaris hypoperfusion, but further studies are required to elucidate this hypothesis.
Subject(s)
White Dot Syndromes , Adult , Female , Fluorescein Angiography , Humans , Multimodal Imaging , Retrospective Studies , Tomography, Optical Coherence , Young AdultABSTRACT
OBJECTIVE: To study the differences between solar retinopathy (SR) and the maculopathy produced by laser pointer (LPM) using multimodal imaging. METHOD: A retrospective series is presented of 20 eyes of 12 patients with injuries associated with light, 7 with SR-compatible injuries, and 5 with LPM. At diagnosis, a complete ophthalmological examination was performed, including visual acuity (VA), retinography, and spectral domain optical coherence tomography (OCT). The patients were followed-up for a mean period of 20 months. RESULTS: LPM is common in paediatrics (mean age 15.60±1.5years), and SR affects patients of all ages (mean age 47.56±1.51years). VA at diagnosis in LPM is greater, and recovery is more complete than in solar retinopathy. In conventional retinography, SR is shown as a single lesion in the macular area (100% of cases), while LPM usually presents as multifocal lesions (86% of cases). Infrared reflectance makes this difference clearer. The main sign in OCT is the disruption of the ellipsoid layer and interdigitation zone. This sign is maintained over time, and its size is greater in the SR than in the LPM. Hyper-reflective columns and hyper-reflective reaction of the retinal pigment epithelium are associated with the acute phase. CONCLUSIONS: LPM and SR show significant differences in the type of patient affected, as well as in the signs in multimodal imaging, as well as in functional impairment and their evolution.
ABSTRACT
El pseudoxantoma elástico (PXE) es una enfermedad hereditaria rara, que cursa con alteraciones del tejido conectivo, debido a una alteración en el cromosoma 16p del gen ABCC6. Desde una perspectiva clínica, da lugar a manifestaciones predominantemente cutáneas, cardiacas y oftalmológicas. La asociación de β-talasemia y cuadros clínicos compatibles con PXE (síndromes PXE-like) ha sido descrita en la literatura en pacientes con β-talasemia mayor e intermedia, que es indistinguible clínicamente del PXE clásico. Presentamos el caso de un niño de 10 años con beta-talasemia minor y lesiones características de PXE. Cabe destacar el beneficio de la imagen multimodal para el diagnóstico y seguimiento de las lesiones
Pseudoxanthoma elasticum (PXE) is a rare genetic disorder characterised by elastic tissue alterations and caused by mutations in a single gene, ABCC6, on chromosome 16p that includes manifestations that are predominantly cutaneous, ocular and cardiovascular. PXE-like lesions in association with β-thalassemia have previously been reported in the literature in patients with Beta-thalassaemia intermediate and major, being clinically indistinguishable from classic PXE. The case is presented of a 10-year-old boy with β-thalassaemia minor and characteristic lesions of PXE. It is worth noting the benefit of multimodal imaging in the diagnosis and monitoring of the lesions
Subject(s)
Humans , Male , Child , Pseudoxanthoma Elasticum/pathology , beta-Thalassemia/pathology , Pseudoxanthoma Elasticum/diagnostic imaging , beta-Thalassemia/diagnostic imaging , Tomography, Optical Coherence/methods , Ophthalmoscopy/methods , Multimodal ImagingABSTRACT
Pseudoxanthoma elasticum (PXE) is a rare genetic disorder characterised by elastic tissue alterations and caused by mutations in a single gene, ABCC6, on chromosome 16p that includes manifestations that are predominantly cutaneous, ocular and cardiovascular. PXE-like lesions in association with ß-thalassemia have previously been reported in the literature in patients with ß-thalassaemia intermediate and major, being clinically indistinguishable from classic PXE. The case is presented of a 10-year-old boy with ß-thalassaemia minor and characteristic lesions of PXE. It is worth noting the benefit of multimodal imaging in the diagnosis and monitoring of the lesions.
ABSTRACT
No disponible
Subject(s)
Humans , Female , Infant, Newborn , Child , Retinopathy of Prematurity/diagnostic imaging , Multimodal Imaging , Remission, Spontaneous , Tomography, Optical CoherenceABSTRACT
In severe cases of abducens or sixth cranial nerve palsy, transpositions of the superior rectus and inferior rectus into the paralytic lateral rectus have been demonstrated to be useful. Numerous techniques have been described over time to carry out these transpositions, such as the Hummelsheim, O'Connor, Jensen, Foster, or Nishida technique. The first 4 techniques mentioned above have an increased risk of anterior segment ischaemia. The case is presented of a long-standing bilateral sixth cranial nerve palsy secondary to a severe cranial injury. Given the risk of ischaemia of the anterior segment, the Nishida technique was chosen in order to reduce the risk of suffering from this complication. This is combined with botulinum toxin in both middle rectus to try to resolve the muscle contracture associated with the long evolution of the case, obtaining good results at 6, and 12 months after the surgical procedure.
Subject(s)
Abducens Nerve Diseases/therapy , Botulinum Toxins/therapeutic use , Ophthalmologic Surgical Procedures/methods , Abducens Nerve Diseases/pathology , Adult , Combined Modality Therapy , Humans , Male , Time FactorsABSTRACT
No disponible
