RESUMO
CASE REPORT: We describe ocular findings due to a vitamin A deficiency in a 50-year-old man. The patient had undergone intestinal bypass surgery two years before. After therapy with oral vitamin A the symptoms improved. DISCUSSION: The incidence of morbid obesity is increasing throughout much of the developed world, with intestinal bypass surgery the treatment of choice for most people with the condition. This type of surgery can lead to a vitamin A deficiency, with remarkable ophthalmological consequences, which without correct treatment may ultimately cause blindness. For this reason, the pathology, even though rare at present, must considered seriously.
Assuntos
Derivação Jejunoileal/efeitos adversos , Cegueira Noturna/etiologia , Obesidade Mórbida/cirurgia , Deficiência de Vitamina A/complicações , Xeroftalmia/etiologia , Humanos , Masculino , Pessoa de Meia-Idade , Deficiência de Vitamina A/etiologiaRESUMO
Caso clínico: Se describen los hallazgos oculares debidos a un déficit de vitamina A en un varón de 50 años. Fue sometido a una cirugía de bypass intestinal dos años antes. Después de tratamiento con vitamina A oral, los síntomas mejoraron. Discusión: La incidencia de obesidad mórbida sigue aumentando alarmantemente en todo el mundo, siendo actualmente el tratamiento mas adoptado en la mayoría de los pacientes la cirugía de bypass intestinal. Este tipo de cirugía puede provocar un déficit de vitamina A, con importantes consecuencias oftalmológicas, que podrían incluso llegar a la ceguera sin un correcto tratamiento. Por consiguiente, se debería considerar seriamente esta patología hasta ahora poco frecuente en países desarrollados
Case report: We describe ocular findings due to a vitamin A deficiency in a 50-year-old man. The patient had undergone intestinal bypass surgery two years before. After therapy with oral vitamin A the symptoms improved. Discussion: The incidence of morbid obesity is increasing throughout much of the developed world, with intestinal bypass surgery the treatment of choice for most people with the condition. This type of surgery can lead to a vitamin A deficiency, with remarkable ophthalmological consequences, which without correct treatment may ultimately cause blindness. For this reason, the pathology, even though rare at present, must considered seriously
Assuntos
Masculino , Pessoa de Meia-Idade , Humanos , Cegueira Noturna/etiologia , Xeroftalmia/etnologia , Obesidade Mórbida/cirurgia , Derivação Gástrica/efeitos adversos , Cegueira Noturna/diagnóstico , Xeroftalmia/diagnóstico , Obesidade Mórbida/complicações , Complicações Pós-Operatórias/diagnóstico , Deficiência de Vitamina A/tratamento farmacológico , Deficiência de Vitamina A/etiologiaRESUMO
The ophthalmology radioactive phosphorus uptake test has been utilized in the differential diagnosis of intra ocular lesions in 21 patients. In the majority of the cases the diagnosis was histologically confirmed. When the lesion is located in the anterior part of the globe, it is not necessary to make an incision of the conjunctiva to perform the test. If the lesion is located in the posterior segment, the test is performed by the transscleral route, with surgical incision of the conjunctiva and with indirect ophthalmoscopy control when possible. In 3 patients with choroidal hemangioma were results false-positives, observed with inferior P32 uptake to that in patients with choroidal melanomas. One false-negative result was obtained in a patient with a clinical diagnosis of uveal malignant melanoma, histologically confirmed after enucleation of the globe. In all others patients with uveal malignant melanoma results were highly positive.
