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1.
Indian J Ophthalmol ; 70(5): 1837-1840, 2022 05.
Artículo en Inglés | MEDLINE | ID: mdl-35502089

RESUMEN

A 49-year-old Indian male presented with rapidly progressive vision loss 1 day after receiving the second dose of BNT162b2 mRNA coronavirus disease 2019 (COVID-19) vaccine (Pfizer-BioNTech, NY, USA). The eye had secondary angle closure glaucoma, bullous retinal detachment, and massive intraocular hemorrhage. Ultrasound showed an ill-defined subretinal mass with moderate internal reflectivity. Magnetic resonance imaging (MRI) confirmed an enhancing heterogeneous subretinal mass. Histopathology showed a necrotic melanocytic lesion arising from the posterior edge of the ciliary body and choroid. Necrotic uveal melanoma was confirmed after expert histopathology opinion. Uveal melanomas can rarely present with tumor necrosis following mRNA COVID-19 vaccination.


Asunto(s)
COVID-19 , Melanoma , Vacuna BNT162 , Vacunas contra la COVID-19/efectos adversos , Humanos , Masculino , Melanoma/diagnóstico , Melanoma/patología , Persona de Mediana Edad , Necrosis , ARN Mensajero , Neoplasias de la Úvea , Vacunación
2.
Adv Ophthalmol Pract Res ; 2(2): 100049, 2022.
Artículo en Inglés | MEDLINE | ID: mdl-37846383

RESUMEN

Purpose: Dengue fever (DF) epidemics in Singapore in 2005-2006 and 2007 were caused predominantly by dengue virus serotypes 1 (DENV-1) and 2 (DENV-2) respectively. We investigated the prevalence of ophthalmic manifestations during these consecutive epidemics. Methods: Seropositive DF patients admitted to the hospital during two separate dengue epidemics were enrolled from June 2005 to December 2007. Demographic, ophthalmic, and laboratory data were collected. The primary outcome measures were differences in ophthalmic and laboratory features across the two epidemics. Factors associated with increased risk of developing various DF-related ophthalmic manifestations were the secondary outcome measures. Results: Of the 115 patients enrolled, 109 (94.7%; 33 in 2005-2006 and 76 in 2007) completed the eye screening protocol. Majority of patients were Chinese (65, 59.6%) and males (81, 74.3%). The mean age was 40.8 years (range, 18-87). Colour vision impairment (12 vs 14 [36.4% vs 18.7%]; P â€‹= â€‹0.04), cotton wool spots (10 vs 3 [30.3% vs 3.9%]; P â€‹< â€‹0.001), bleeding diathesis (7 vs 3 [21.2% vs 3.9%]; P â€‹= â€‹0.004) and abnormal liver function (mean alanine amino-transferase [150.2 U/L vs 68.28 U/L; P â€‹= â€‹0.001], mean aspartate amino-transferase [196.86 U/L vs 99.53 U/L; P â€‹= â€‹0.002], total protein [68.43 â€‹g/L vs 72.27 â€‹g/L; P â€‹= â€‹0.016], serum albumin [36.86 â€‹g/L vs 40.5 â€‹g/L; P â€‹= â€‹0.001]) were noted more often in DF epidemics predominantly caused by DENV-1 compared to DENV-2. Conclusions: A higher prevalence of colour vision impairment, cotton wool spots, bleeding diathesis, and abnormal liver function was found in DF epidemics predominantly caused by DENV-1 compared to DENV-2.

6.
Am J Ophthalmol ; 152(1): 60-65.e1, 2011 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-21570045

RESUMEN

PURPOSE: To ascertain the health-related quality of life associated with symptomatic degenerative vitreous floaters. DESIGN: Cross-sectional questionnaire survey. METHODS: In this institution-based study, 311 outpatients aged 21 years and older who presented with symptoms of floaters were enrolled. Data from 266 patients (85.5%) who completed the questionnaire were analyzed. Utility values were assessed using a standardized utility value questionnaire. The time trade-off (TTO) and standard gamble (SG) for death and blindness techniques were used to calculate the utility values. Descriptive, univariate, and multivariate analyses were performed using Stata Release 6.0. RESULTS: The mean age of the study population was 52.9 ± 12.02 years (range, 21-97). The mean utility values were 0.89, 0.89, and 0.93 for TTO, SG (death), and SG (blindness), respectively. Patients aged ≤55 years reported significantly lower SG (blindness) utility values when compared with patients above 55 years of age (age ≤55 = 0.92, age >55 = 0.94, P = .007). Utility measurements did not demonstrate significant relationship with any of the other socio-demographic variables examined in this study. The utility values did not demonstrate any significant relationship with other ocular characteristics such as duration of symptoms, presence of a posterior vitreous detachment, and presence or severity of myopia. CONCLUSIONS: Symptomatic degenerative vitreous floaters have a negative impact on health-related quality of life. Younger symptomatic patients are more likely to take a risk of blindness to get rid of the floaters than older patients.


Asunto(s)
Oftalmopatías/psicología , Calidad de Vida/psicología , Perfil de Impacto de Enfermedad , Cuerpo Vítreo/patología , Adulto , Anciano , Anciano de 80 o más Años , Análisis Costo-Beneficio , Estudios Transversales , Evaluación de la Discapacidad , Oftalmopatías/economía , Oftalmopatías/terapia , Femenino , Humanos , Masculino , Persona de Mediana Edad , Años de Vida Ajustados por Calidad de Vida , Factores Socioeconómicos , Encuestas y Cuestionarios , Adulto Joven
12.
Acta Ophthalmol Scand ; 84(5): 606-12, 2006 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-16965489

RESUMEN

PURPOSE: To evaluate the various surgical interventions available for uncomplicated rhegmatogenous retinal detachment. METHODS: Reports of controlled clinical trials of surgical interventions (pneumatic retinopexy, scleral buckling and vitrectomy) for uncomplicated rhegmatogenous retinal detachment indexed in MEDLINE from 1968 to January 2006 were included. The primary outcomes evaluated included single-operation reattachment rates, multiple reoperation reattachment rates and improvements in visual acuity (VA). RESULTS: We found five controlled trials (two randomized) comparing the efficacy of pneumatic retinopexy versus scleral buckling. The single-operation reattachment rates were higher for scleral buckling, but the final reattachment rates were similar. We found nine controlled trials (four randomized) evaluating vitrectomy. There were no statistically significant differences between retinal reattachment rates or final visual acuities, except in one randomized and one non-randomized controlled trial in which the VAs were significantly better in the vitrectomy than the scleral buckling group. CONCLUSIONS: Pneumatic retinopexy is a possible alternative to scleral buckling in the treatment of uncomplicated rhegmatogenous retinal detachment. The rates of missed or new retinal breaks after pneumatic retinopexy, however, are higher than following scleral buckling. The clinical outcomes of vitrectomy for rhegmatogenous retinal detachment compare favourably.


Asunto(s)
Crioterapia/métodos , Desprendimiento de Retina/cirugía , Curvatura de la Esclerótica/métodos , Vitrectomía/métodos , Medicina Basada en la Evidencia , Humanos , Ensayos Clínicos Controlados Aleatorios como Asunto , Recurrencia , Reoperación , Resultado del Tratamiento , Agudeza Visual/fisiología
15.
Indian J Ophthalmol ; 50(2): 115-21, 2002 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-12194567

RESUMEN

PURPOSE: Cytomegalovirus retinitis (CMV) is the most common ocular opportunistic infection in transplant recipients. This retrospective study attempts to report the differences in occurrence of cytomegalovirus retinetis in transplant recipients from those reported in patients with acquired immunodeficiency syndrome (AIDS). METHODS: 25 eyes of 15 transplant recipients (14 renal and one cardiac) with cytomegalovirus retinitis were retrospectively reviewed. Immunological profile included CD4+ and CD8+ T lymphocyte counts, CD4+/CD8+ cell ratio (5 cases) and serology for the viral antibodies (8 cases). RESULTS: A predominantly bilateral presentation (60%) was noted. Active cytomegalovirus retinitis (72%) in zone 2 (92%) of the inferotemporal quadrant (68%) was noted. The average cell counts were within normal limits (mean CD4 cell count-711/microliter), unlike in late stages of AIDS with cytomegalovirus retinitis (CD4 count < 50/microliter). Serology revealed an IgM positivity of 53%. Retinal detachment (52%) was the most common complication occurring after an average of 5.4 months. CONCLUSION: CMV retinitis in organ transplant recipients appears to differ from that in AIDS patients. CMV retinitis presents early and has different immunological profile, probably owing to differences in pathogenesis.


Asunto(s)
Retinitis por Citomegalovirus/complicaciones , Retinitis por Citomegalovirus/inmunología , Trasplante de Corazón , Trasplante de Riñón , Infecciones Oportunistas/complicaciones , Infecciones Oportunistas/inmunología , Adulto , Antivirales/uso terapéutico , Relación CD4-CD8 , Linfocitos T CD4-Positivos/inmunología , Linfocitos T CD8-positivos/inmunología , Retinitis por Citomegalovirus/terapia , Ganciclovir/uso terapéutico , Humanos , Masculino , Persona de Mediana Edad , Desprendimiento de Retina/etiología , Desprendimiento de Retina/cirugía , Estudios Retrospectivos , Resultado del Tratamiento , Agudeza Visual
16.
Orbit ; 18(1): 33-36, 1999 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-12048696

RESUMEN

Primary liposarcoma of the orbit is a rare tumour. There are very few cases of orbital liposarcoma reported in the literature, mostly of the myxoid variety. In this paper, the authors report the clinical presentation, histopathological features, results of diagnostic studies and management of a case of orbital low grade myxoliposarcoma with local recurrence, together with a review of the literature.

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