Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 58
Filtrar
1.
Int Ophthalmol ; 39(9): 2137-2142, 2019 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-30293205

RESUMEN

PURPOSE: To present multimodal imaging of multifocal chorioretinitis secondary to endogenous candida infection in a young adult. METHODS: A 49-year-old woman who presented for evaluation of bilateral endogenous candida chorioretinitis underwent complete ophthalmic examination, in addition to fundus photography (FP), enhanced depth imaging optical coherence tomography, fundus autofluorescence (FAF), fluorescein angiography (FA), indocyanine green angiography (ICGA) and optical coherence tomography angiography (OCTA). RESULTS: Multimodal imaging of both eyes of the patient affected by endogenous candida chorioretinitis was performed. FP showed multiple white chorioretinal lesions at the posterior pole, FAF showed dark dot at the posterior pole surrounded by hyperautofluorescence area, FA showed early hyperfluorescence round perifoveal lesion at the posterior pole and small hyperfluorescence dots under the inferior retinal vessels. Early ICGA showed hypofluorescence dots at the posterior pole. Late ICGA showed dark hypofluorescence dots at the posterior pole surrounded by faint hyperautofluorescent ring. OCTA showed dark areas corresponded to hypoperfusion areas seen with early ICGA. CONCLUSION: We reported multimodal imaging of an unusual occurrence of multifocal chorioretinitis due to immunosuppression. These findings suggested that the infection resulted from choroidal infiltration via the short posterior ciliary arteries with resultant breakthrough into the retina, rather than via the central retinal artery. By comparing findings on OCTA with data obtained from traditional systems, we are gaining essential information on the pathogenesis of endogenous candida chorioretinitis.


Asunto(s)
Candidiasis/complicaciones , Coriorretinitis/diagnóstico , Coroides/patología , Infecciones Fúngicas del Ojo/complicaciones , Angiografía con Fluoresceína/métodos , Imagen Multimodal , Tomografía de Coherencia Óptica/métodos , Candida/aislamiento & purificación , Candidiasis/diagnóstico , Candidiasis/microbiología , Coriorretinitis/etiología , Coriorretinitis/microbiología , Infecciones Fúngicas del Ojo/diagnóstico , Infecciones Fúngicas del Ojo/microbiología , Femenino , Fondo de Ojo , Humanos , Persona de Mediana Edad , Vasos Retinianos/patología
2.
Int Ophthalmol ; 38(3): 975-983, 2018 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-28497336

RESUMEN

PURPOSE: To describe the OCT angiography characteristics of flat irregular pigment epithelial detachments (PEDs), an overlapping tomographic feature of various macular disorders. METHODS: Consecutive patients with a dimpled retinal pigment epithelium profile on OCT, referred for a second opinion, were enrolled. Fluorescein (FA) and indocyanine green angiography (ICGA) were performed in all patients and compared to previous examinations, when available. In all patients, enhanced depth imaging-OCT and OCT angiography were performed upon referral and at subsequent follow-ups. RESULTS: Twenty-five eyes from 25 patients (9 women and 16 men, mean age of 63.4 years) were enrolled. The diagnoses of CSCR were already established by the referring physicians in 10 patients, acute in 15% and chronic in 26%; 48% of patients were referred with a diagnosis of type 1 CNV, and 11% of CSCR complicated by CNV. After performing OCT angiography, 2 masked examiner identified 7 type 1 CNV (29%), 18 eyes with pachychoroid disease of which 31% pachychoroid pigment epitheliopathies (PPEs) at baseline evolved to CSCR, 22% PPE at baseline evolved to pachychoroid neovasculopathy, 18% pachychoroid neovasculopathy stable. CONCLUSION: Central serous chorioretinopathy, type 1 CNV, and the pachychoroid spectrum of diseases cause abnormalities in the choroidal circulation that make the overlying RPE dysfunctional, resulting in flat irregular PED. Discrimination between avascular and vascular flat irregular PEDs is crucial for a good visual outcome, but since chronic alterations of the RPE can compromise the diagnostic specificity of FA and ICGA, OCT angiography may become a fundamental tool to differentiate these clinical entities.


Asunto(s)
Angiografía con Fluoresceína/métodos , Mácula Lútea/patología , Desprendimiento de Retina/diagnóstico , Epitelio Pigmentado de la Retina/patología , Tomografía de Coherencia Óptica/métodos , Anciano , Femenino , Estudios de Seguimiento , Fondo de Ojo , Humanos , Aumento de la Imagen , Masculino , Persona de Mediana Edad , Agudeza Visual
3.
Int Ophthalmol ; 38(5): 2153-2158, 2018 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-28795246

RESUMEN

PURPOSE: To present a single case of bilateral multiple evanescent white dot syndrome (MEWDS). METHODS: A single case with three months of follow-up using imaging studies including fundus color photography (FP), fluorescein angiography (FA), indocyanine green angiography (ICGA), fundus autofluorescence (FAF), spectral-domain optical coherence tomography (SD-OCT), en face SD-OCT and optical coherence tomography angiography (OCTA) is presented. RESULTS: The patient presented with bilateral MEWDS, ultimately with complete resolution of symptoms. FP revealed foveal granularity and white punctate deep retinal spots, FA found early wreath-like hyperfluorescence, while ICGA showed hypofluorescent dots and spots in the early and late stages. FAF showed areas of hyperautofluorescence. SD-OCT revealed disruption of the ellipsoid zone (EZ) and accumulation of hyperreflective material of variable size and shape. En face SD-OCT demonstrated hyporeflective areas corresponding to areas of EZ disruption as well as hyperreflective dots in the outer nuclear layer. OCTA showed areas of photoreceptor slab black-out corresponding to areas of EZ disruption and light areas of flow void or flow disturbance in the choriocapillaris slab. CONCLUSIONS: This case represents an unusual case of bilateral MEWDS with complete resolution within three months.


Asunto(s)
Coroiditis/diagnóstico , Angiografía con Fluoresceína/métodos , Fóvea Central/patología , Tomografía de Coherencia Óptica/métodos , Femenino , Fondo de Ojo , Humanos , Coroiditis Multifocal , Síndrome , Adulto Joven
4.
Ophthalmology ; 124(2): 224-234, 2017 02.
Artículo en Inglés | MEDLINE | ID: mdl-28029445

RESUMEN

PURPOSE: To assess the safety and efficacy of E10030 (Fovista; Ophthotech, New York, NY), a platelet-derived growth factor (PDGF) antagonist, administered in combination with the anti-vascular endothelial growth factor (VEGF) agent ranibizumab (Lucentis; Roche, Basel, Switzerland) compared with ranibizumab monotherapy in patients with neovascular age-related macular degeneration (nAMD). DESIGN: Phase IIb global, multicenter, randomized, prospective, double-masked, controlled superiority trial. PARTICIPANTS: Four hundred forty-nine patients with treatment-naïve nAMD. METHODS: Participants were randomized in a 1:1:1 ratio to 1 of the following 3 intravitreal treatment groups: E10030 0.3 mg in combination with ranibizumab 0.5 mg, E10030 1.5 mg in combination with ranibizumab 0.5 mg, and sham in combination with ranibizumab 0.5 mg (anti-VEGF monotherapy). Drugs were administered monthly in each of the groups for a total duration of 24 weeks. MAIN OUTCOME MEASURES: The prespecified primary end point was the mean change in visual acuity (VA; Early Treatment Diabetic Retinopathy [ETDRS] letters) from baseline to 24 weeks. RESULTS: No significant safety issues were observed in any treatment group. The E10030 (1.5 mg) combination therapy regimen met the prespecified primary end point of superiority in mean VA gain compared with anti-VEGF monotherapy (10.6 compared with 6.5 ETDRS letters at week 24; P = 0.019). A dose-response relationship was evident at each measured time point commencing at 4 weeks. Visual acuity outcomes favored the E10030 1.5 mg combination therapy group regardless of baseline VA, lesion size, or central subfield thickness on optical coherence tomography. All clinically relevant treatment end points of visual benefit (≥15 ETDRS letter gain, final VA ≥20/40 or ≥20/25) and visual loss (≥1 ETDRS line loss, ≥2 ETDRS line loss, final VA ≤20/125 or ≤20/200) favored the E10030 1.5 mg combination group. CONCLUSIONS: In this phase IIb clinical trial, a 62% relative benefit from baseline was noted in the E10030 1.5 mg combination therapy group compared with the anti-VEGF monotherapy group. A favorable safety and efficacy profile of E10030 combination therapy for nAMD was evident across multiple clinically relevant end points. This highly powered study provides strong rationale for a confirmatory phase III clinical trial.


Asunto(s)
Inhibidores de la Angiogénesis/uso terapéutico , Aptámeros de Nucleótidos/antagonistas & inhibidores , Factor de Crecimiento Derivado de Plaquetas/antagonistas & inhibidores , Ranibizumab/uso terapéutico , Factor A de Crecimiento Endotelial Vascular/antagonistas & inhibidores , Degeneración Macular Húmeda/tratamiento farmacológico , Anciano , Anciano de 80 o más Años , Relación Dosis-Respuesta a Droga , Método Doble Ciego , Quimioterapia Combinada , Femenino , Humanos , Inyecciones Intravítreas , Masculino , Persona de Mediana Edad , Estudios Prospectivos , Agudeza Visual
5.
Retina ; 36(6): 1199-208, 2016 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-26618803

RESUMEN

PURPOSE: To propose a classification of retinal astrocytic hamartoma based on spectral domain optical coherence tomography and correlate each class with systemic manifestations of tuberous sclerosis complex. METHODS: Retrospective chart review conducted at four international referral medical retina centers. There were 43 consecutive patients with an established diagnosis of tuberous sclerosis complex based on presence of at least 2 major or 1 major and 2 minor features of the diagnostic criteria. Clinical and spectral domain optical coherence tomography features regarding retinal astrocytic hamartoma were documented. RESULTS: The mean patient age at presentation was 16.2 years. The retinal astrocytic hamartoma was classified as Type I (n = 41), Type II (n = 25), Type III (n = 20), or Type IV (n = 12). Patients with Type II showed greater number of cutaneous fibrous plaques (odds ratio = 64.8; 92% confidence interval: 64.2-65; P < 0.001); those with Type III displayed higher incidence of subependymal giant-cell astrocytomas (odds ratio = 43.2; 95% confidence interval: 43.0-43.3; P < 0.001); and those with Type IV showed higher incidence of pulmonary lymphangiomyomatosis (odds ratio = 126; 95% confidence interval: 122-128; P < 0.001). CONCLUSION: Retinal astrocytic hamartoma can be classified into four morphologic groups, based on spectral domain optical coherence tomography. There are important systemic tuberous sclerosis complex correlations with each class.


Asunto(s)
Hamartoma/clasificación , Enfermedades de la Retina/clasificación , Tomografía de Coherencia Óptica/clasificación , Esclerosis Tuberosa/clasificación , Adolescente , Adulto , Niño , Femenino , Hamartoma/patología , Humanos , Masculino , Enfermedades de la Retina/patología , Estudios Retrospectivos , Esclerosis Tuberosa/diagnóstico
6.
Retina ; 35(12): 2584-92, 2015 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-26035513

RESUMEN

PURPOSE: To describe wide-field spectral domain optical coherence tomography morphologic relationships of the vitreous, retina, and choroid in healthy and pathologic eyes. METHODS: Standardized horizontal, vertical, and two oblique (supertemporal to inferonasal and supranasal to inferotemporal) spectral domain optical coherence tomography sections were collected for each patient. For extramacular imaging, images were obtained from 8 locations: (1) nasal to the optic disk, (2) extreme nasal periphery, (3) superior to the superotemporal vascular arcade, (4) extreme superior periphery, (5) inferior to the inferotemporal vascular arcade, (6) extreme inferior periphery, (7) temporal to the macula, and (8) extreme temporal periphery. Wide-angle montage images of optical coherence tomography from equator-to-equator were composed with a montaging software. RESULTS: Wide-field spectral domain optical coherence tomography scans were obtained in 10 healthy subjects, in 7 patients with central serous chorioretinopathy, in 5 patients with wet age-related macular degenerations, in 5 patients with dry age-related macular degenerations, in 4 patients with retinitis pigmentosa, and in 1 patient with acute exudative polymorphous vitelliform maculopathy. CONCLUSION: The novel approach of montaging spectral domain optical coherence tomography images to examine relationships between the choroid, retina, and associated structures adjacent to and outside of the macula may have a number of relevant applications in the study of vitreoretinal interface, paramacular and macular pathologic features.


Asunto(s)
Coroides , Retina , Enfermedades de la Retina/patología , Tomografía de Coherencia Óptica/métodos , Cuerpo Vítreo , Adolescente , Adulto , Anciano , Coroides/anatomía & histología , Coroides/patología , Femenino , Humanos , Masculino , Persona de Mediana Edad , Retina/anatomía & histología , Retina/patología , Degeneración Retiniana/patología , Cuerpo Vítreo/anatomía & histología , Cuerpo Vítreo/patología , Adulto Joven
7.
Int Ophthalmol ; 35(2): 167-71, 2015 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-25552349

RESUMEN

The aim the study was to describe wide-field spectral-domain optical coherence tomography morphologic relationships of the vitreous, retina, and choroid in central serous chorioretinopathy (CSCR) eyes. Standardized horizontal, vertical, and two oblique (supertemporal to inferonasal and supranasal to inferotemporal) SD-OCT sections were collected for 40 patient with CSCR. For extramacular imaging, images were obtained from eight locations: (1) nasal to the optic disk, (2) extreme nasal periphery, (3) superior to the superotemporal vascular arcade, (4) extreme superior periphery, (5) inferior to the inferotemporal vascular arcade, (6) extreme inferior periphery, (7) temporal to the macula, and (8) extreme temporal periphery. Wide-angle montage images of OCT from equator to equator were composed with a montaging software. Average subfoveal choroidal thickness was 478 ± 114 µm (range 232-695 µm) at the macular level, 367 ± 94 µm in the superior periphery, 257 ± 103 µm in the inferior periphery, 431 ± 121 and 280 ± 88 µm in the nasal and in the temporal periphery, respectively. Wide-field EDI-OCT revealed a relative thinning of the inner choroidal layer in the periphery, including the small and medium large vessels, which ranged from 86 µm nasally to 120.1 µm superiorly, with a mean of 98.8 ± 13.6 µm. Beneath the thinned inner choroidal layer, hyporeflective lumina, corresponding to the outer choroidal layer, were identified in the periphery of all eyes. The outer choroidal layer thickness ranged from 175.5 µm temporally to 235.5 µm superiorly, with a mean of 217.8 ± 41.4 µm. The novel approach of montaging SD-OCT images to examine relationships between the choroid, retina, and associated structures adjacent to and outside of the macula may have a number of relevant applications in the study of pathologic features of central serous chorioretinopathy.


Asunto(s)
Coriorretinopatía Serosa Central/patología , Tomografía de Coherencia Óptica/métodos , Adolescente , Adulto , Coroides/patología , Femenino , Humanos , Masculino , Persona de Mediana Edad , Estudios Prospectivos , Retina/patología , Vasos Retinianos/patología , Cuerpo Vítreo/patología , Adulto Joven
8.
Graefes Arch Clin Exp Ophthalmol ; 252(10): 1661-7, 2014 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-25038908

RESUMEN

PURPOSE: To report a novel spectral-domain optical coherence tomography (SD-OCT) finding in children affected by tilted disc syndrome (TDS), and to correlate it with early visual field defects. METHODS: Patients between 5 and 17 years old with TDS were enrolled in this study. The diagnosis of TDS was made by stereoscopic fundus photography, when the upper edge of the optic disc protruded anteriorly relative to its lower edge. All eyes were examined with 12 radial SD-OCT B-scans of 12 mm centered on the optic disc; the fundus area encompassing the optic nerve was additionally scanned using several vertical and horizontal scans.. C-scan SD-OCT were acquired using the Macular Cube 512 x 128 to create the en face image. Standard automated perimetry 24-2 tests were performed on all patients. RESULTS: Thirty-eight eyes of 20 pediatric patients with TDS syndrome were enrolled during this 24-months clinical trial. Their mean age was 10.9 ± 2.7 years (range 7-15 years), 12 (60%) were male and eight (40%) were female. The OCT images of the optic discs showed a protrusion of the upper edge of Bruch's membrane and choroid at the nasal edge of the optic disc in 39.5% of the eyes. The retinal nerve fiber tissue appeared to be herniated into this protrusion and bent superiorly in 15 eyes. This severe bending corresponded to early visual field anomalies that were not reduced by corrective lenses in 46.7% of the eyes. CONCLUSION: Visual field defects that do not improve by increased myopic correction in TDS may be due to the severe bending of the retinal nerve fiber tissue, which would impair axonal flow.


Asunto(s)
Anomalías del Ojo/diagnóstico , Fibras Nerviosas/patología , Disco Óptico/anomalías , Células Ganglionares de la Retina/patología , Tomografía de Coherencia Óptica , Trastornos de la Visión/diagnóstico , Campos Visuales , Adolescente , Niño , Femenino , Humanos , Masculino , Disco Óptico/patología , Pruebas del Campo Visual
9.
Retina ; 34(4): 655-63, 2014 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-24670998

RESUMEN

PURPOSE: To identify early and late retinal nerve fiber layer thickness (RNFLT) modification after internal limiting membrane peeling for idiopathic macular hole or epiretinal membrane and to correlate RNFLT to visual field indices. METHODS: Single-center, prospective, interventional consecutive case series. Complete ophthalmic examination, fundus images, and spectral domain optical coherence tomography were performed in 30 eyes of 30 patients before and 1, 3, and 6 months after surgery. Six peripapillary sectors (superotemporal, temporal, inferotemporal, inferonasal, nasal, superonasal) and global RNFLT were evaluated. Visual field was performed preoperatively and 6 months postoperatively. RESULTS: Significant RNFLT modification was found after surgery (P < 0.0001). Specifically, RNFLT significantly increased in all, but the temporal sectors, 1 month after surgery, and it returned to preoperative values at the third month. Six months after surgery, RNFLT was lower than basal values in the superotemporal, inferotemporal, and temporal sectors (P < 0.001, P < 0.05, and P < 0.001, respectively) with an average reduction of 18.2 ± 9.8 µm. No correlation was found between RNFLT and the visual field indices. CONCLUSION: The diffuse RNFLT increase 1 month postoperatively could be because of inflammatory responses. The reduction of RNFLT in the temporal sectors 6 months postoperatively could indicate damage to the macular retinal nerve fiber layer caused by internal limiting membrane peeling.


Asunto(s)
Membrana Epirretinal/cirugía , Fibras Nerviosas/patología , Facoemulsificación , Células Ganglionares de la Retina/patología , Perforaciones de la Retina/cirugía , Vitrectomía , Anciano , Femenino , Humanos , Presión Intraocular/fisiología , Masculino , Estudios Prospectivos , Tomografía de Coherencia Óptica , Tonometría Ocular , Campos Visuales/fisiología
10.
Retina ; 34(2): 373-84, 2014 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-23860561

RESUMEN

PURPOSE: To describe the appearance of acute syphilitic posterior placoid chorioretinitis, a rare ocular manifestation of syphilis, on spectral domain optical coherence tomography (SD OCT) both before and after treatment. METHODS: Ophthalmic examination and imaging studies of 30 eyes of 19 confirmed cases were analyzed both at the time of presentation and at each follow-up visit. Patients with SD OCT and fluorescein angiography at the time of presentation, and at least three documented follow-up visits after initiation of therapy, were included in the study. Standard treatment of neurosyphilis was given to each patient, including 4 million units of penicillin G administered intravenously every 4 hours for 14 days. RESULTS: Fundus examination and imaging studies were consistent with previous reports and confirmed the diagnosis of acute syphilitic posterior placoid chorioretinitis. In 13 eyes (43.3%), baseline SD OCT scans were performed within 1 to 2 days of presentation and revealed a small amount of subretinal fluid, disruption of the inner segment/outer segment junction, and hyperreflective thickening of the retinal pigment epithelium (RPE). All 30 eyes were again scanned between Days 7 and 9 after presentation and revealed loss of the inner segment/outer segment and OS/RPE bands, and irregular hyperreflectivity of the RPE with prominent nodular elevations but without subretinal fluid. Early disruption of the external limiting membrane and punctate choroidal hyperreflectivity were seen in 1 of the 30 eyes (3.3%) and 14 of the 30 eyes (46.6%), respectively. Vision improved and the outer retinal abnormalities normalized in 28 of the 30 eyes (93.3%) after the treatment of neurosyphilis. The external limiting membrane, inner segment/outer segment band, and/or linear outer segment/RPE junction remained substantially abnormal despite treatment in 2 eyes left with 20/200 vision. CONCLUSION: Patients with acute syphilitic posterior placoid chorioretinitis show characteristic outer retinal abnormalities on SD OCT imaging, including disruption of the inner segment/outer segment band, nodular thickening of the RPE with loss of the linear outer segment/RPE junction, and, in some cases, loss of the external limiting membrane, accumulation of subretinal fluid, and punctate hyperreflectivity in the choroid. Vision improved and these abnormalities reversed after treatment of neurosyphilis in most of the patients. Persistently, poor vision despite treatment was associated with long-term loss or disruption of outer retinal anatomy on SD OCT.


Asunto(s)
Infecciones Oportunistas Relacionadas con el SIDA/diagnóstico , Coriorretinitis/diagnóstico , Infecciones Bacterianas del Ojo/diagnóstico , Sífilis/diagnóstico , Tomografía de Coherencia Óptica/métodos , Infecciones Oportunistas Relacionadas con el SIDA/tratamiento farmacológico , Infecciones Oportunistas Relacionadas con el SIDA/microbiología , Enfermedad Aguda , Administración Oral , Adulto , Antibacterianos/uso terapéutico , Coriorretinitis/tratamiento farmacológico , Coriorretinitis/microbiología , Quimioterapia Combinada , Infecciones Bacterianas del Ojo/tratamiento farmacológico , Infecciones Bacterianas del Ojo/microbiología , Femenino , Angiografía con Fluoresceína , Glucocorticoides/uso terapéutico , Seropositividad para VIH , Humanos , Inyecciones Intravenosas , Masculino , Persona de Mediana Edad , Penicilina G/uso terapéutico , Sífilis/microbiología , Serodiagnóstico de la Sífilis
11.
Int Ophthalmol ; 34(4): 923-6, 2014 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-24114504

RESUMEN

The aim of this study was to report a case of vitreous hemorrhage secondary to retinal vasculitis in a patient with dyskeratosis congenita. A 16-year-old white male was referred to the Ophthalmology Clinic due to deterioration of vision in his left eye. Medical history was significant for dyskeratosis congenita associated with thrombocytopenia. General physical examination revealed reticular pigmentation on the upper half of the chest, vertical ridges and splitting of finger nails, and oral mucosal leukoplakia. Ophthalmological examination of the anterior segment was unremarkable. Retinal examination revealed vitreous hemorrhage in the left eye veiling the retinal details. A possible history of trauma was denied. Fundus examination of the right eye showed retinal vascular sheathing with a few dot and blot retinal hemorrhages. Fluorescein angiography revealed extensive areas of non-perfusion beyond the equator in the right eye, later treated with scatter laser photocoagulation. We performed a 23-gauge vitrectomy with endolaser treatment of the new vascularization areas in the left eye. After 6 months, best-corrected visual acuity in the right and left eye was 20/20 and 20/25, respectively. Rather than being confined to anterior segment abnormalities like conjunctivitis, blepharitis and nasolacrimal duct obstruction which are reported in the literature, dyskeratosis congenita can cause significant visual loss due to retinal vasculitis and vitreous hemorrhage. Therefore physicians and ophthalmologists should be aware of this possibility and prompt diagnosis and treatment could prevent further visual loss in such patients.


Asunto(s)
Disqueratosis Congénita/complicaciones , Vasculitis Retiniana/etiología , Hemorragia Vítrea/etiología , Adolescente , Humanos , Masculino
12.
Int Ophthalmol ; 34(2): 437-46, 2014 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-23864285

RESUMEN

Pars plana vitrectomy and inner limiting membrane (ILM) peeling are standard procedures for macular hole and epiretinal membrane surgery. However, ILM peeling is known to cause mechanical traumatic changes to the retinal nerve fiber layer. Recently there have been numerous reports of anatomical changes in the macula after ILM removal. A comprehensive review of the literature. The earliest change in the macula after ILM peeling is post-operative swelling of the arcuate retinal nerve fiber layer (SANFL), which disappears within the 3 month; the swelling is not detected on biomicroscopic fundus examination but appears as hypoautofluorescent arcuate striae in the macular region on infrared and autofluorescence imaging, with corresponding hyperreflectant swelling demonstrated on spectral-domain optical coherence tomography (OCT). SANFL is followed by dissociated optic nerve fiber layer defect, faintly visible on fundus examination and corresponding on OCT to "dimples" in the inner retinal layers. The en face tomographic aspect of this defect appears as concentric macular dark spots. Post-operative foveal displacement toward the optic disc might be responsible for the stretching and thinning of the retinal parenchyma in the temporal subfield and the thickening of the nasal macula. This shortening of the papillofoveal distance after surgery is probably secondary to axonal transport and contractility alterations in the nerve fiber layer, which might also account for apoptotic and atrophic degeneration of the peripapillary retinal nerve fiber layer. Ganglion cells do not seem to be affected by ILM peeling, even if the ganglion cell complex loses some volume because of trauma to the Müller cells contained in the ganglion cell layer. Despite its clear indication in macular hole and epiretinal membrane surgery, ILM peeling is a traumatic procedure that has acute effects on the underlying inner retinal layers. Further investigation of these subclinical changes may assist in aiding the development of minimally traumatic techniques for ILM removal.


Asunto(s)
Membrana Epirretinal/cirugía , Complicaciones Posoperatorias , Retina/lesiones , Enfermedades de la Retina/etiología , Vitrectomía/efectos adversos , Humanos , Vitrectomía/métodos
13.
Retina ; 32(7): 1280-8, 2012 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-22218148

RESUMEN

PURPOSE: We performed a prospective noncomparative study to report the results of reduced fluence photodynamic therapy (PDT) combined with intravitreal ranibizumab in patients with polypoidal choroidal vasculopathy with active exudation and hemorrhage. METHODS: Seventeen polypoidal choroidal vasculopathy eyes were treated, and follow-up for all patients was 12 months. Photodynamic therapy was administered with reduced fluence (exposure time of 70'') and followed (48 hours later) by intravitreal ranibizumab (0.5 mg in 50 µL). Intravitreal ranibizumab, with or without reduced fluence PDT, was repeated as indicated by clinical and angiographic findings. RESULTS: During the follow-up, the mean best-corrected visual acuity significantly improved from 0.45 ± 0.29 logarithm of the minimum angle of resolution at baseline to 0.29 ± 0.28 logarithm of the minimum angle of resolution at 12 months. The mean total macular volume (documented by optical coherence tomography retinal map examination) decreased from 7.5 ± 1.18 mm to 6.7 ± 0.8 mm. In 95% of the cases, best-corrected visual acuity remained stable or improved. CONCLUSION: Reduced fluence PDT limits laser exposure, minimizing the risks of PDT-induced adverse effects. Intravitreal injections of ranibizumab 0.5 mg reduced bleeding and leakage in polypoidal choroidal vasculopathy eyes and interfere with rebound upregulation of vascular endothelial growth factor because of PDT-induced choroidal hypoperfusion. Combined treatment may improve treatment outcomes in polypoidal choroidal vasculopathy while minimizing ocular and systemic complications of treatment.


Asunto(s)
Inhibidores de la Angiogénesis/administración & dosificación , Anticuerpos Monoclonales Humanizados/administración & dosificación , Enfermedades de la Coroides/tratamiento farmacológico , Fotoquimioterapia/métodos , Pólipos/tratamiento farmacológico , Anciano , Coroides/irrigación sanguínea , Enfermedades de la Coroides/diagnóstico , Enfermedades de la Coroides/fisiopatología , Colorantes , Terapia Combinada , Femenino , Angiografía con Fluoresceína , Estudios de Seguimiento , Humanos , Verde de Indocianina , Inyecciones Intravítreas , Masculino , Persona de Mediana Edad , Pólipos/diagnóstico , Pólipos/fisiopatología , Estudios Prospectivos , Ranibizumab , Retratamiento , Tomografía de Coherencia Óptica , Factor A de Crecimiento Endotelial Vascular/antagonistas & inhibidores , Agudeza Visual/fisiología
15.
Retina ; 32(8): 1608-13, 2012 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-22495325

RESUMEN

PURPOSE: The purpose of the study is to report the incidence of changes of the retinal nerve fiber layer in the early postoperative period after internal limiting membrane peeling for idiopathic macular hole and epiretinal membrane surgery. METHODS: Interventional, noncomparative retrospective case series. Fifty-six eyes of 55 patients with an epiretinal membrane and 33 eyes of 31 patients with macular hole underwent pars plana vitrectomy and internal limiting membrane peeling. All patients received a complete ophthalmic examination, infrared and autofluorescence photography, and spectral-domain optical coherence tomography preoperatively and also at approximately 1 week, 1 month, and 3 months postoperatively. Vitrectomy and gas tamponade were performed with internal limiting membrane peeling after staining with Brilliant Peel. The main outcome measures were the presence of postoperative swelling of the arcuate retinal nerve fiber layer on spectral-domain optical coherence tomography, infrared and autofluorescence photographs, and its effect on best-corrected visual acuity. RESULTS: On infrared and autofluorescence photographs, 28 (31.46%) of 89 eyes with internal limiting membrane peeling exhibited swelling of the arcuate retinal nerve fiber layer 1 week to 1 month postoperatively. Swelling of the arcuate retinal nerve fiber layer increased during the first month after surgery and resolved after a mean period of 2 months. These features were best visualized by autofluorescence imaging, as three to five dark striae originating from the optic nerve head, radiating in an arcuate pattern toward the macula. Simultaneous spectral-domain optical coherence tomography scanning through the striae indicated that they correspond to areas of focal swelling of the arcuate nerve fiber layer. No significant differences were found in eyes with or without swelling of the arcuate retinal nerve fiber layer for mean age or pre- and postoperative best-corrected visual acuity (P > 0.05). CONCLUSION: Swelling of the arcuate retinal nerve fiber layer often occurs after internal limiting membrane peeling for macular hole and epiretinal membrane. It is a transient feature after surgery that does not affect visual recovery. It is best visualized using infrared and autofluorescence imaging. Simultaneous infrared and spectral-domain optical coherence tomography imaging after macular surgery can detect transient inner retinal changes, which are not visible on clinical examination.


Asunto(s)
Membrana Epirretinal/cirugía , Fibras Nerviosas/patología , Papiledema/etiología , Complicaciones Posoperatorias , Células Ganglionares de la Retina/patología , Perforaciones de la Retina/cirugía , Anciano , Membrana Basal/cirugía , Colorantes , Endotaponamiento , Femenino , Angiografía con Fluoresceína , Humanos , Masculino , Papiledema/diagnóstico , Papiledema/fisiopatología , Estudios Retrospectivos , Tomografía de Coherencia Óptica , Agudeza Visual/fisiología , Vitrectomía
17.
Ocul Immunol Inflamm ; 29(2): 340-345, 2021 Feb 17.
Artículo en Inglés | MEDLINE | ID: mdl-31697565

RESUMEN

Purpose: To evaluate choroidal structural changes in patients with multiple evanescent white dot syndrome (MEWDS) during the acute and recovery stages.Methods: Enhanced-depth imaging optical coherence tomography (EDI-OCT) scans of 16 patients with unilateral MEWDS were acquired during the acute and recovery stages in both eyes. Images were binarized with the ImageJ software to measure subfoveal choroidal thickness (CT), total choroid area, luminal area and choroidal vascularity index (CVI).Results: In the acute stage, subfoveal CT, total choroidal area and CVI were significantly higher in eyes with MEWDS compared to fellow eyes (371.2 ± 101.8 vs 317.1 ± 90.3 µm, p = .001; 2.826 ± 0.686 vs 2.524 ± 0.674 mm2, p = .014; 69.49 ± 3.51 vs 68.27 ± 3.41%, p = .044, respectively). In the recovery stage, subfoveal CT, total choroidal area and CVI in eyes with MEWDS significantly decreased to respectively 333.4 ± 90.5 µm, p = .007, 2.592 ± 0.570 p = .002, and 67.31 ± 2.74%, p = .014.Conclusions: Choroidal thickness and vascularity are significantly increased during the acute stage of MEWDS.


Asunto(s)
Coroides/irrigación sanguínea , Vasos Retinianos/diagnóstico por imagen , Tomografía de Coherencia Óptica/métodos , Agudeza Visual , Síndromes de Puntos Blancos/diagnóstico , Adolescente , Adulto , Progresión de la Enfermedad , Femenino , Estudios de Seguimiento , Humanos , Masculino , Estudios Retrospectivos , Adulto Joven
18.
Am J Ophthalmol Case Rep ; 17: 100577, 2020 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-31886435

RESUMEN

PURPOSE: Staphylococcus aureus bacteriemia (SAB) as critical condition for the life and occasionally involves the eyes. The aim of this report is to describe the ocular involvement with multimodal imaging. OBSERVATIONS: A patient admitted for evaluation of acute onset of confusion, disorientation, and generalized malaise and found to have methicillin-resistant staphylococcus aureus (MRSA)-associated endocarditis and multifocal brain abscesses was evaluated by the ophthalmology service. The patient's visual acuity was 20/20 OU without relative afferent pupillary defect and normal intraocular pressures. Bedside anterior segment examination was normal. Posterior segment examination revealed intraretinal hemorrhages and Roth spots in the posterior pole of the right eye, and two deep well-defined focal white chorioretinal infiltrates and a hemorrhagic pigment epithelium detachment in the temporal quadrant of the left eye. Multimodal imaging was utilized to document these findings and ensure adequate antibiotic therapy. CONCLUSION: SAB has the potential for poor visual outcomes as well as significant morbidity and mortality. Multimodal imaging of SAB-related chorioretinitis allows for accurate diagnosis as well as assessment of response to antimicrobial therapy.

19.
Eur J Ophthalmol ; 30(3): 612-615, 2020 May.
Artículo en Inglés | MEDLINE | ID: mdl-32000520

RESUMEN

PURPOSE: The aim of this article is to describe a novel surgical technique for sutureless scleral fixation of an intraocular lens using the newly developed FIL SSF Carlevale IOL (Soleko, Italy). METHODS: Four eyes of four patients with poor capsular support were recruited to our study, three resulting from intraocular lens subluxation and one case resulting from traumatic cataract. A novel sutureless sclera-fixated intraocular lens was implanted into the posterior chamber of each eye with sclerocorneal plugs fixating the lens to the wall of the eye. RESULTS: Mean age of patients was 52 ± 16 years, ranging from 35 to 70 years. Mean follow-up was 6.50 ± 1.29 months (range: 5-7 months). Mean preoperative best-corrected visual acuity was 0.50 ± 0.33 logMAR (range: 1-0.3 logMAR). Postoperative best-corrected visual acuity improved to 0.08 ± 0.08 logMAR (range: 0.2-0 logMAR). There was no significant change in the mean intraocular pressure and there were no postoperative complications, such as iatrogenic distortion or breakage of the intraocular lens haptic, intraocular lens decentration, endophthalmitis, or retinal detachment. DISCUSSION: To the best of our knowledge, this is the first report of outcomes using the novel sutureless sclera-fixated FIL SSF Carlevale IOL. This new surgical technique offers a simplified and effective approach for sutureless scleral intraocular lens fixation with good refractive outcomes.


Asunto(s)
Implantación de Lentes Intraoculares/métodos , Facoemulsificación , Esclerótica/cirugía , Procedimientos Quirúrgicos sin Sutura , Adulto , Anciano , Femenino , Estudios de Seguimiento , Humanos , Presión Intraocular/fisiología , Masculino , Persona de Mediana Edad , Seudofaquia/fisiopatología , Estudios Retrospectivos , Agudeza Visual/fisiología
20.
J Clin Med ; 9(7)2020 Jul 16.
Artículo en Inglés | MEDLINE | ID: mdl-32708670

RESUMEN

Central serous chorioretinopathy (CSC) is a complex and not entirely understood retinal disease. The aim of our research was to describe a novel optical coherence tomography (OCT) finding named "choroidal rift", which may be identified in the choroid of eyes with CSC. We collected data from 357 patients (488 eyes) with CSC who had structural OCT and OCT angiography (OCTA) scans obtained. Choroidal rifts were identified as polygonal (and not round-shaped) hyporeflective lesions without hyperreflective margins. Choroidal rifts had to be characterized by a size superior to that of the largest choroidal vessel. Finally, hyporeflective lesions were graded as choroidal rifts only if these lesions had a main development perpendicular to the retinal pigment epithelium. OCT analysis allowed the identification of choroidal rifts in ten eyes from nine patients, all with chronic CSC, with an estimated prevalence rate of 2.1%. In three out of ten cases with choroidal rifts, these lesions spanned all the choroidal layers. In the remaining cases, choroidal rifts only partially spanned the choroidal thickness. In OCTA, choroidal rifts were characterized by the absence of flow. Combining structural OCT and OCTA information, we hypothesized that choroidal rifts may represent interruptions of the choroidal stroma in correspondence of fragile regions (in between expanded larger-sized choroidal vessels). Choroidal rift represents a novel OCT feature, which may characterize eyes with chronic CSC and may have a role in the development of irreversible chorio-retinal changes.

SELECCIÓN DE REFERENCIAS
DETALLE DE LA BÚSQUEDA