Using frequency-doubling perimetry to detect optic neuropathy in patients with Graves' orbitopathy.

PURPOSE: to test the ability of frequency-doubling technology (FDT) perimetry to detect dysthyroid optic neuropathy (DON). METHODS: Fifteen eyes of 15 patients with DON and 15 healthy control eyes were studied. Eligible eyes had a diagnosis of DON based on visual field abnormalities on standard automated perimetry and had visual acuity better than 20/30. FDT testing was performed using both the C-20-5 screening test and the C-20 full-threshold test. Normal and DON eyes were compared with regard to FDT mean sensitivity. RESULTS: Sensitivity ranges were 40.0%-86.7% for the screening test, and 53.3%-100.0% (total deviation) and 20.0-93.3 (pattern deviation) for the C-20 threshold test. The corresponding specificity ranges were 86.7-100.0, 33.3-93.3, and 26.7-100.0, respectively. The best sensitivity/specificity ratios were for one abnormal point depressed <5% in the screening test (86.7%/86.7%), one point depressed <1% in the total deviation analysis (80.0%/86.7%), and one point depressed <2% in the pattern deviation analysis (80.0%/86.7%). DON eyes presented significantly lower than normal average sensitivity in the central, pericentral, and peripheral areas. CONCLUSIONS: FDT perimetry is a useful screening tool for DON in eyes with normal or only slightly reduced visual acuity.

Condiçäo de diagnóstico e idade em que foram operadas crianças com catarata congênita em Säo Paulo / Diagnosis conditions and age at which children were operated with congenital cataracts in Säo Paulo

Estudam-se as condiçöes de diagnóstico e a idade em que foram operados 115 pacientes com catarata congênita na Clínica Oftalmológica do Hospital das Clínicas da Universidade de Säo Paulo, de maio de 1978 a abril de 1984. Concluem-se que estes pacientes chegam tardiamente ao oftalmologista, com demora muito grande entre as cirurgias do primeiro e segundo olho e 23,77% dos casos näo retornam para a cirurgia do segundo olho. Analisam-se também as dificuldades de seguimento médico pelo fato de 53% dos pacientes serem de outros municípios ou estados. Recomendam uma maior participaçäo dos pediatras no diagnóstico desta patologia, maior conscientizaçäo da populaçäo leiga sobre o problema e a cirurgia precoce das cataratas congênitas, sugerindo ainda que as cirurgias dos casos bilaterais sejam realizadas durante a mesma internaçäo hospitalar

Uso da anestesia tópica na cirurgia de anomalias oculomotoras / Use of topical anaesthesia in the surgery of oculomotor abnormalities

Dezesseis indivíduos adultos portadores de estrabismo de causas diversas foram operados, usando-se a anestesia tópica. A forma de aplicaçäo foi a instilaçäo de colírio de proximetacaína ou proparacaína a 0,5%. Näo ocorreram intercorrências graves e as cirurgias foram realizadas sem grandes dificulades