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Intraocular Pressure Sensor Based on a Contact Lens / 生物医学工程学杂志
Journal of Biomedical Engineering ; (6): 18-22, 2016.
Artigo em Chinês | WPRIM | ID: wpr-357858
ABSTRACT
Intraocular pressure detection has a great significance for understanding the status of eye health, prevention and treatment of diseases such as glaucoma. Traditional intraocular pressure detection needs to be held in the hospital. It is not only time-consuming to doctors and patients, but also difficult to achieve 24 hour-continuous detection. Microminiaturization of the intraocular pressure sensor and wearing it as a contact lens, which is convenient, comfortable and noninvasive, can solve this problem because the soft contact lens with an embedded micro fabricated strain gauge allows the measurement of changes in corneal curvature to correlate to variations of intraocular pressure. We fabricated a strain gauge using micro-electron mechanical systems, and integrated with the contact lens made of polydimethylsiloxane (PDMS) using injection molding. The experimental results showed that the sensitivity was 100. 7 µV/µm. When attached to the corneal surface, the average sensitivity of sensor response of intraocular pressure can be 125.8 µV/mm Hg under the ideal condition.
Assuntos
Texto completo: DisponíveL Índice: WPRIM (Pacífico Ocidental) Assunto principal: Tonometria Ocular / Glaucoma / Lentes de Contato Hidrofílicas / Dimetilpolisiloxanos / Pressão Intraocular Limite: Humanos Idioma: Chinês Revista: Journal of Biomedical Engineering Ano de publicação: 2016 Tipo de documento: Artigo

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Texto completo: DisponíveL Índice: WPRIM (Pacífico Ocidental) Assunto principal: Tonometria Ocular / Glaucoma / Lentes de Contato Hidrofílicas / Dimetilpolisiloxanos / Pressão Intraocular Limite: Humanos Idioma: Chinês Revista: Journal of Biomedical Engineering Ano de publicação: 2016 Tipo de documento: Artigo