RESUMO
PURPOSE: To investigate whether subclinical ciliochoroidal effusion and resulting asymptomatic angle narrowing occurs in patients taking topiramate, by ultrasound biomicroscopy (UBM). METHODS: Chinese patients aged 18-75 years for whom topiramate was indicated were recruited. Examinations including UBM were performed before and 4 weeks after commencement of topiramate. RESULTS: In this pilot of 20 eyes of 20 patients, there were no statistically significant changes in the angle parameters noted on gonioscopy or UBM, including anterior chamber depth, angle-opening distance at 500 mum, trabecular ciliary process distance, trabecular-iris angle, and scleral thickness. CONCLUSION: Short-term use of topiramate does not induce asymptomatic angle narrowing.
Assuntos
Segmento Anterior do Olho/efeitos dos fármacos , Frutose/análogos & derivados , Fármacos Neuroprotetores/efeitos adversos , Adulto , Segmento Anterior do Olho/diagnóstico por imagem , Segmento Anterior do Olho/patologia , Povo Asiático , China , Feminino , Frutose/efeitos adversos , Humanos , Pressão Intraocular/efeitos dos fármacos , Masculino , Microscopia Acústica , Pessoa de Meia-Idade , Projetos Piloto , Estudos Prospectivos , Topiramato , Acuidade Visual/efeitos dos fármacos , Adulto JovemRESUMO
AIM: To document any correlation between previous acute angle-closure attack and the extent of synechial angle closure in chronic primary angle-closure glaucoma (PACG) patients. METHODS: Consecutive cases of chronic PACG with patent peripheral iridotomy had gonioscopy performed. The extents of synechial angle closure of those chronic PACG eyes with previous documented acute angle-closure attack were compared to those eyes without such a history. RESULTS: A total of 102 chronic PACG eyes of 102 patients were recruited. Twenty-seven eyes (26.5%) had a previous documented acute angle closure, while 75 eyes (73.5%) did not. The mean extent of synechial angle closure +/-1 SD was 307+/-68 degrees (range, 150-360 degrees) in those chronic PACG eyes with a history of previous acute angle closure, compared to 266+/-89 degrees (range, 90-360 degrees) in those chronic PACG eyes without such a history (P=0.03, Student's t-test). There were no statistically significant differences between the two groups in age, LogMAR visual acuity, intraocular pressure (IOP), number of glaucoma eye drops, vertical cup-to-disk ratio, mean deviation or pattern SD in Humphrey automated perimetry, and anterior chamber depth (P>0.05). CONCLUSION: Previous acute angle-closure attack correlated with more extensive synechial angle closure in chronic PACG patients in this study.