RESUMEN
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.
Asunto(s)
Lentes de Contacto/estadística & datos numéricos , Equipos Desechables/estadística & datos numéricos , Adulto , Brasil , Lentes de Contacto/efectos adversos , Córnea/patología , Contaminación de Equipos , Femenino , Humanos , Masculino , Satisfacción del Paciente , Estudios Prospectivos , Agudeza VisualRESUMEN
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.
Asunto(s)
Bacterias/aislamiento & purificación , Conjuntiva/microbiología , Lentes de Contacto Hidrofílicos , Contaminación de Equipos , Adolescente , Adulto , Bacterias/crecimiento & desarrollo , Soluciones para Lentes de Contacto , Femenino , Humanos , Masculino , Persona de Mediana Edad , Estudios ProspectivosRESUMEN
Foram estudados 1636 pacientes atendidos no Servico de Oftalmologia da Escola Paulista de Medicina no periodo de 1o. de abril a 30 de junho de 1980. Estes pacientes foram analisados quanto ao sexo, idade na consulta, idade provavel de inicio da doenca , acuidade visual corrigida e diagnosticos, o que possibilita o agrupamento das patologias estudadas. Considerando-se cego o olho com visao menor que 0,1 com melhor correcao optica. Encontrou-se cegueira em 20,9% dos olhos examinados. As causas mundiais mais importantes de cegueira, nao sao validas para a populacao estudada. As doencas oculares que mais cegaram nesta populacao sao relacionadas com glaucoma e retina para cegueira bilateral, estrabismo e uveite para cegueira unilateral