RESUMO
PURPOSE: The objective of this study was to analyze prospectively the continuous use of disposable contact lenses. METHODS: We conducted a clinical study of extended wear of disposable contact lenses for a period of 7 days and 6 nights by 25 patients during a 90-day period. Factors such as visual acuity, keratometry, complications, and contamination were analyzed. RESULTS: Visual acuity and keratometry measurements did not present significant alterations during the study. Complications related to the use of disposable contact lenses were not observed. Analysis of cultures did not present any significant microbiological alterations due to contact lens use. All of the patients were satisfied with the wear schedule and considered the Acuvue lenses comfortable. CONCLUSIONS: Our results may be useful in increasing the level of acceptance of extended wear of disposable contact lenses in Brazil.
Assuntos
Lentes de Contato/estatística & dados numéricos , Equipamentos Descartáveis/estatística & dados numéricos , Adulto , Brasil , Lentes de Contato/efeitos adversos , Córnea/patologia , Contaminação de Equipamentos , Feminino , Humanos , Masculino , Satisfação do Paciente , Estudos Prospectivos , Acuidade VisualRESUMO
We prospectively analyzed bacterial contamination in 15 soft contact lens wearing subjects. Contact lenses, cases, tips of saline solution bottles, and conjunctiva were cultured. Cultures were positive for 13 subjects (86.6%). Contamination was present in 13 contact lens cases (86.6%), 12 contact lenses (80.0%), nine saline solution bottles (60.0%), and in the conjunctiva of three patients (20.0%). Gram-negative bacteria (Pseudomonas aeruginosa and Proteus mirabilis) were the most frequently isolated organisms. Staphylococcus aureus was the only gram-positive organism isolated. We discuss the possible sources of contamination, and emphasize the importance of contact lens care instruction.
Assuntos
Bactérias/isolamento & purificação , Túnica Conjuntiva/microbiologia , Lentes de Contato Hidrofílicas , Contaminação de Equipamentos , Adolescente , Adulto , Bactérias/crescimento & desenvolvimento , Soluções para Lentes de Contato , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Estudos ProspectivosRESUMO
Foi realizado um estudo com o balao de compressao ocular continua em 40 pacientes com idade variando entre 43 e 67 anos. Aplicou-se nesse balao uma pressao constante de 40 mmHg por trinta minutos, obtendo-se com isso uma reducao significativa (p < 0,001) da pressao intra-ocular (ao redor de 06 mmHg) por mais de vinte minutos em todos os pacientes.Alem de apresentar baixo custo e nenhuma complicacao o metodo mostrou ser eficiente, podendo, portanto ser usado como alternativa ao manitol no pre-operatorio da cirurgia intra-ocular