Chloroquine diphosphate has been used in the treatment of various rheumatic diseases, including rheumatoid arthritis. The most important of its side effects is retinopathy. If not diagnosed early, this lesion can evolve into irreversible bull's eye maculopathy and visual loss. The aim of this study was to define the outcome of chloroquine-induced maculopathy after cessation of chloroquine therapy and also to identify the risk factors involved in case of retinopathy evolution. The design of this cohort study was longitudinal and retrospective. Over the period spanning 2000 to 2005, out of 607 medical records of patients with rheumatoid arthritis followed in our Division of Rheumatology, 27 had been diagnosed with chloroquine-induced maculopathy through clinical funduscopy with pupil dilation. In all cases, there was immediate chloroquine intake cessation. After a mean time of 5 years, 16 of these patients were available for follow-up and underwent a new ophthalmologic evaluation by funduscopy, using biomicroscopy and angiofluorescein when necessary. Sequelae maculopathy were reconfirmed in all 16 cases, but progression to advanced stage (bull's eye maculopathy) was found in half of the cohort, even though chloroquine had been suspended. All patients complained of visual alterations, but without progression. Comparison between patient groups with and without bull's eye maculopathy revealed a statistically significant longer rheumatoid arthritis disease history in the former group. Also, the bull's eye group had higher dose intakes of chloroquine and over a longer period compared to the other group, but not statistically significant. This study corroborates the progression of maculopathy even after cessation of chloroquine intake, pointing out the need for careful screening in the high-risk patients. Furthermore, it indicates that duration of rheumatoid arthritis disease could be a possible factor linked to worse prognosis of chloroquine-induced maculopathy.

No abstract

Considering the normality of the electro-oculogram, we can easily conclude that the electro-oculogram is not sensible to detect chloroquine maculopathy and that reported reductions may occur due to the course of the rheumatoid arthritis itself. The mfERG may be an important ophthalmological screening and follow-up management to investigate patients using chloroquine.

Objetivo: Identificar percepções e significados referentes à perda visual de pacientes que apresentavam visão monocular e diagnóstico de catarata, com indicação cirúrgica, por comprometimento visual significativo. Métodos: Desenvolveu-se estudo qualitativo, por meio de entrevistas abertas, com 8 sujeitos identificados por Campanha da Catarata, realizada no Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo (HC-FMUSP), em novembro de 2004.Resultados: Dos entrevistados, 4 eram do sexo feminino e 4 do sexo masculino, tendo a idade variado de 38 a 86 anos. Referiram atividades profissionais como responsáveis pela perda visual, apontaram dificuldades para conseguir o atendimento médico, manifestaram desconhecimento e crenças populares em relação ao próprio problema ocular e dificuldades encontradas no cotidiano em decorrência da doença. Conclusões: Foram identificados significados, percepções, sentimentos, reações e experiências relacionados à catarata e à perda visual. A ocorrência da catarata no único olho significou angústia e situação conflituosa relacionadas à perda da independência. A expectativa de voltar a enxergar mediante intervenção cirúrgica prendeu-se ao sentimento de ter uma vida “normal”, de sentir-se útil e do retorno ao mercado de trabalho.